New techniques of building construction are being researched, made possible by advances in 3D printing technology. In a form of additive building construction, similar to the additive manufacturing techniques for manufactured parts, building printing is making it possible to flexibly construct small commercial buildings and private habitations in around 20 hours, with built-in plumbing and electrical facilities, in one continuous build, using large 3D printers. Working versions of 3D-printing building technology are already printing 2 metres (6 ft 7 in) of building material per hour as of January 2013[update], with the next-generation printers capable of 3.5 metres (11 ft) per hour, sufficient to complete a building in a week. Dutch architect Janjaap Ruijssenaars's performative architecture 3D-printed building is scheduled to be built in 2014.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): As of 2014 how quickly is building material being printed?


Read this: To avoid interference with existing VHF television stations in the San Francisco Bay Area and those planned for Chico, Sacramento, Salinas, and Stockton, the Federal Communications Commission decided that Fresno would only have UHF television stations. The very first Fresno television station to begin broadcasting was KMJ-TV, which debuted on June 1, 1953. KMJ is now known as NBC affiliate KSEE. Other Fresno stations include ABC O&O KFSN, CBS affiliate KGPE, CW affiliate KFRE, FOX affiliate KMPH, MNTV affiliate KAIL, PBS affiliate KVPT, Telemundo O&O KNSO, Univision O&O KFTV, and MundoFox and Azteca affiliate KGMC-DT.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What is the name of the CBS affiliate in Fresno?


Geology:

In the laboratory, stratigraphers analyze samples of stratigraphic sections that can be returned from the field, such as those from drill cores. Stratigraphers also analyze data from geophysical surveys that show the locations of stratigraphic units in the subsurface. Geophysical data and well logs can be combined to produce a better view of the subsurface, and stratigraphers often use computer programs to do this in three dimensions. Stratigraphers can then use these data to reconstruct ancient processes occurring on the surface of the Earth, interpret past environments, and locate areas for water, coal, and hydrocarbon extraction.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Stratigraphers try to locate areas for what types of extraction?


Read this: New Rochelle, located in the county of Westchester on the north shore of Long Island Sound, seemed to be the great location of the Huguenots in New York. It is said that they landed on the coastline peninsula of Davenports Neck called "Bauffet's Point" after traveling from England where they had previously taken refuge on account of religious persecution, four years before the revocation of the Edict of Nantes. They purchased from John Pell, Lord of Pelham Manor, a tract of land consisting of six thousand one hundred acres with the help of Jacob Leisler. It was named New Rochelle after La Rochelle, their former strong-hold in France. A small wooden church was first erected in the community, followed by a second church that built of stone. Previous to the erection of it, the strong men would often walk twenty-three miles on Saturday evening, the distance by the road from New Rochelle to New York, to attend the Sunday service. The church was eventually replaced by a third, Trinity-St. Paul's Episcopal Church, which contains heirlooms including the original bell from the French Huguenot Church "Eglise du St. Esperit" on Pine Street in New York City, which is preserved as a relic in the tower room. The Huguenot cemetery, or "Huguenot Burial Ground", has since been recognized as a historic cemetery that is the final resting place for a wide range of the Huguenot founders, early settlers and prominent citizens dating back more than three centuries.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): How much land did the Lord of Pelham Manor, John Pell. own in total in North America?


Read this: While Qutb's ideas became increasingly radical during his imprisonment prior to his execution in 1966, the leadership of the Brotherhood, led by Hasan al-Hudaybi, remained moderate and interested in political negotiation and activism. Fringe or splinter movements inspired by the final writings of Qutb in the mid-1960s (particularly the manifesto Milestones, a.k.a. Ma'alim fi-l-Tariq) did, however, develop and they pursued a more radical direction. By the 1970s, the Brotherhood had renounced violence as a means of achieving its goals.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What movements pursued a more radical direction?


Merit Network, Inc., an independent non-profit 501(c)(3) corporation governed by Michigan's public universities, was formed in 1966 as the Michigan Educational Research Information Triad to explore computer networking between three of Michigan's public universities as a means to help the state's educational and economic development. With initial support from the State of Michigan and the National Science Foundation (NSF), the packet-switched network was first demonstrated in December 1971 when an interactive host to host connection was made between the IBM mainframe computer systems at the University of Michigan in Ann Arbor and Wayne State University in Detroit. In October 1972 connections to the CDC mainframe at Michigan State University in East Lansing completed the triad. Over the next several years in addition to host to host interactive connections the network was enhanced to support terminal to host connections, host to host batch connections (remote job submission, remote printing, batch file transfer), interactive file transfer, gateways to the Tymnet and Telenet public data networks, X.25 host attachments, gateways to X.25 data networks, Ethernet attached hosts, and eventually TCP/IP and additional public universities in Michigan join the network. All of this set the stage for Merit's role in the NSFNET project starting in the mid-1980s.
What was eventual Merits role?  (If the question is unanswerable, say "unanswerable")


Read this: An evasion strategy used by several pathogens to avoid the innate immune system is to hide within the cells of their host (also called intracellular pathogenesis). Here, a pathogen spends most of its life-cycle inside host cells, where it is shielded from direct contact with immune cells, antibodies and complement. Some examples of intracellular pathogens include viruses, the food poisoning bacterium Salmonella and the eukaryotic parasites that cause malaria (Plasmodium falciparum) and leishmaniasis (Leishmania spp.). Other bacteria, such as Mycobacterium tuberculosis, live inside a protective capsule that prevents lysis by complement. Many pathogens secrete compounds that diminish or misdirect the host's immune response. Some bacteria form biofilms to protect themselves from the cells and proteins of the immune system. Such biofilms are present in many successful infections, e.g., the chronic Pseudomonas aeruginosa and Burkholderia cenocepacia infections characteristic of cystic fibrosis. Other bacteria generate surface proteins that bind to antibodies, rendering them ineffective; examples include Streptococcus (protein G), Staphylococcus aureus (protein A), and Peptostreptococcus magnus (protein L).
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What protein does Staphylococcus aureus produce to make antibodies ineffective?


What is a question about this article? If the question is unanswerable, say "unanswerable".

Newton's First Law of Motion states that objects continue to move in a state of constant velocity unless acted upon by an external net force or resultant force. This law is an extension of Galileo's insight that constant velocity was associated with a lack of net force (see a more detailed description of this below). Newton proposed that every object with mass has an innate inertia that functions as the fundamental equilibrium "natural state" in place of the Aristotelian idea of the "natural state of rest". That is, the first law contradicts the intuitive Aristotelian belief that a net force is required to keep an object moving with constant velocity. By making rest physically indistinguishable from non-zero constant velocity, Newton's First Law directly connects inertia with the concept of relative velocities. Specifically, in systems where objects are moving with different velocities, it is impossible to determine which object is "in motion" and which object is "at rest". In other words, to phrase matters more technically, the laws of physics are the same in every inertial frame of reference, that is, in all frames related by a Galilean transformation.

Newton's Second Law of Motion states what?


Read this: A fine tribute to the fall of Warsaw and history of Poland can be found in the Warsaw Uprising Museum and in the Katyń Museum which preserves the memory of the crime. The Warsaw Uprising Museum also operates a rare preserved and operating historic stereoscopic theatre, the Warsaw Fotoplastikon. The Museum of Independence preserves patriotic and political objects connected with Poland's struggles for independence. Dating back to 1936 Warsaw Historical Museum contains 60 rooms which host a permanent exhibition of the history of Warsaw from its origins until today.

Where can a tribute to the fall of Warsaw be found?
What is the answer? (If it cannot be answered, return "unanswerable")


In one experiment, Lavoisier observed that there was no overall increase in weight when tin and air were heated in a closed container. He noted that air rushed in when he opened the container, which indicated that part of the trapped air had been consumed. He also noted that the tin had increased in weight and that increase was the same as the weight of the air that rushed back in. This and other experiments on combustion were documented in his book Sur la combustion en général, which was published in 1777. In that work, he proved that air is a mixture of two gases; 'vital air', which is essential to combustion and respiration, and azote (Gk. ἄζωτον "lifeless"), which did not support either. Azote later became nitrogen in English, although it has kept the name in French and several other European languages.
When was the book, Sur, published? (If the question is unanswerable, say "unanswerable")


Read this and answer the question. If the question is unanswerable, say "unanswerable".

Stage 1 is the first, or introductory stage of the bill, where the minister or member in charge of the bill will formally introduce it to Parliament together with its accompanying documents – Explanatory Notes, a Policy Memorandum setting out the policy underlying the bill, and a Financial Memorandum setting out the costs and savings associated with it. Statements from the Presiding Officer and the member in charge of the bill are also lodged indicating whether the bill is within the legislative competence of the Parliament. Stage 1 usually takes place, initially, in the relevant committee or committees and is then submitted to the whole Parliament for a full debate in the chamber on the general principles of the bill. If the whole Parliament agrees in a vote to the general principles of the bill, it then proceeds to Stage 2.

Where are bills typically gestated in Stage 1?


What is a question about this article? If the question is unanswerable, say "unanswerable".

The first historical reference to Warsaw dates back to the year 1313, at a time when Kraków served as the Polish capital city. Due to its central location between the Polish–Lithuanian Commonwealth's capitals of Kraków and Vilnius, Warsaw became the capital of the Commonwealth and of the Crown of the Kingdom of Poland when King Sigismund III Vasa moved his court from Kraków to Warsaw in 1596. After the Third Partition of Poland in 1795, Warsaw was incorporated into the Kingdom of Prussia. In 1806 during the Napoleonic Wars, the city became the official capital of the Grand Duchy of Warsaw, a puppet state of the First French Empire established by Napoleon Bonaparte. In accordance with the decisions of the Congress of Vienna, the Russian Empire annexed Warsaw in 1815 and it became part of the "Congress Kingdom". Only in 1918 did it regain independence from the foreign rule and emerge as a new capital of the independent Republic of Poland. The German invasion in 1939, the massacre of the Jewish population and deportations to concentration camps led to the uprising in the Warsaw ghetto in 1943 and to the major and devastating Warsaw Uprising between August and October 1944. Warsaw gained the title of the "Phoenix City" because it has survived many wars, conflicts and invasions throughout its long history. Most notably, the city required painstaking rebuilding after the extensive damage it suffered in World War II, which destroyed 85% of its buildings. On 9 November 1940, the city was awarded Poland's highest military decoration for heroism, the Virtuti Militari, during the Siege of Warsaw (1939).

Who moved his court from Kraków to Warsaw in 1596?


In World War II, it was recognised that the Rhine would present a formidable natural obstacle to the invasion of Germany, by the Western Allies. The Rhine bridge at Arnhem, immortalized in the book, A Bridge Too Far and the film, was a central focus of the battle for Arnhem, during the failed Operation Market Garden of September 1944. The bridges at Nijmegen, over the Waal distributary of the Rhine, were also an objective of Operation Market Garden. In a separate operation, the Ludendorff Bridge, crossing the Rhine at Remagen, became famous, when U.S. forces were able to capture it intact – much to their own surprise – after the Germans failed to demolish it. This also became the subject of a film, The Bridge at Remagen. Seven Days to the River Rhine was a Warsaw Pact war plan for an invasion of Western Europe during the Cold War.
How many days did the U.S. forces participate in the Cold War? (If the question is unanswerable, say "unanswerable")


The descendants of Rollo's Vikings and their Frankish wives would replace the Norse religion and Old Norse language with Catholicism (Christianity) and the Gallo-Romance language of the local people, blending their maternal Frankish heritage with Old Norse traditions and customs to synthesize a unique "Norman" culture in the north of France. The Norman language was forged by the adoption of the indigenous langue d'oïl branch of Romance by a Norse-speaking ruling class, and it developed into the regional language that survives today.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What language replaced the Gallo-Romance language?


Victoria (Australia):

There are also several smaller freight operators and numerous tourist railways operating over lines which were once parts of a state-owned system. Victorian lines mainly use the 1,600 mm (5 ft 3 in) broad gauge. However, the interstate trunk routes, as well as a number of branch lines in the west of the state have been converted to 1,435 mm (4 ft 8 1⁄2 in) standard gauge. Two tourist railways operate over 760 mm (2 ft 6 in) narrow gauge lines, which are the remnants of five formerly government-owned lines which were built in mountainous areas.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". To what gauge have some lines been changed in the west of Victoria?


Stage 3 is the final stage of the bill and is considered at a meeting of the whole Parliament. This stage comprises two parts: consideration of amendments to the bill as a general debate, and a final vote on the bill. Opposition members can table "wrecking amendments" to the bill, designed to thwart further progress and take up parliamentary time, to cause the bill to fall without a final vote being taken. After a general debate on the final form of the bill, members proceed to vote at Decision Time on whether they agree to the general principles of the final bill.
What is the final stage of a bill in the Scottish Parliament? (If the question is unanswerable, say "unanswerable")


Another example of scientific research which suggests that previous estimates by the IPCC, far from overstating dangers and risks, have actually understated them is a study on projected rises in sea levels. When the researchers' analysis was "applied to the possible scenarios outlined by the Intergovernmental Panel on Climate Change (IPCC), the researchers found that in 2100 sea levels would be 0.5–1.4 m [50–140 cm] above 1990 levels. These values are much greater than the 9–88 cm as projected by the IPCC itself in its Third Assessment Report, published in 2001". This may have been due, in part, to the expanding human understanding of climate.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How much lower did researchers suggest sea levels would be in 2100 as compared to 1990?


The neighborhood includes Kearney Boulevard, named after early 20th century entrepreneur and millionaire M. Theo Kearney, which extends from Fresno Street in Southwest Fresno about 20 mi (32 km) west to Kerman, California. A small, two-lane rural road for most of its length, Kearney Boulevard is lined with tall palm trees. The roughly half-mile stretch of Kearney Boulevard between Fresno Street and Thorne Ave was at one time the preferred neighborhood for Fresno's elite African-American families. Another section, Brookhaven, on the southern edge of the West Side south of Jensen and west of Elm, was given the name by the Fresno City Council in an effort to revitalize the neighborhood's image. The isolated subdivision was for years known as the "Dogg Pound" in reference to a local gang, and as of late 2008 was still known for high levels of violent crime.
Try to answer this question if possible (otherwise reply "unanswerable"): What kinds of trees is Kearney Boulevard lined with?


The Norman dynasty had a major political, cultural and military impact on medieval Europe and even the Near East. The Normans were famed for their martial spirit and eventually for their Christian piety, becoming exponents of the Catholic orthodoxy into which they assimilated. They adopted the Gallo-Romance language of the Frankish land they settled, their dialect becoming known as Norman, Normaund or Norman French, an important literary language. The Duchy of Normandy, which they formed by treaty with the French crown, was a great fief of medieval France, and under Richard I of Normandy was forged into a cohesive and formidable principality in feudal tenure. The Normans are noted both for their culture, such as their unique Romanesque architecture and musical traditions, and for their significant military accomplishments and innovations. Norman adventurers founded the Kingdom of Sicily under Roger II after conquering southern Italy on the Saracens and Byzantines, and an expedition on behalf of their duke, William the Conqueror, led to the Norman conquest of England at the Battle of Hastings in 1066. Norman cultural and military influence spread from these new European centres to the Crusader states of the Near East, where their prince Bohemond I founded the Principality of Antioch in the Levant, to Scotland and Wales in Great Britain, to Ireland, and to the coasts of north Africa and the Canary Islands.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What religion were the Normans


An increase in imported cars into North America forced General Motors, Ford and Chrysler to introduce smaller and fuel-efficient models for domestic sales. The Dodge Omni / Plymouth Horizon from Chrysler, the Ford Fiesta and the Chevrolet Chevette all had four-cylinder engines and room for at least four passengers by the late 1970s. By 1985, the average American vehicle moved 17.4 miles per gallon, compared to 13.5 in 1970. The improvements stayed even though the price of a barrel of oil remained constant at $12 from 1974 to 1979. Sales of large sedans for most makes (except Chrysler products) recovered within two model years of the 1973 crisis. The Cadillac DeVille and Fleetwood, Buick Electra, Oldsmobile 98, Lincoln Continental, Mercury Marquis, and various other luxury oriented sedans became popular again in the mid-1970s. The only full-size models that did not recover were lower price models such as the Chevrolet Bel Air, and Ford Galaxie 500. Slightly smaller, mid-size models such as the Oldsmobile Cutlass, Chevrolet Monte Carlo, Ford Thunderbird and various other models sold well.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): By which year did the American cars mpg start to improve?


In 2005, parts of the Amazon basin experienced the worst drought in one hundred years, and there were indications that 2006 could have been a second successive year of drought. A July 23, 2006 article in the UK newspaper The Independent reported Woods Hole Research Center results showing that the forest in its present form could survive only three years of drought. Scientists at the Brazilian National Institute of Amazonian Research argue in the article that this drought response, coupled with the effects of deforestation on regional climate, are pushing the rainforest towards a "tipping point" where it would irreversibly start to die. It concludes that the forest is on the brink of being turned into savanna or desert, with catastrophic consequences for the world's climate.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): What organization predicted that the Amazon force could survive more than three years of drought


In the early years, many Huguenots also settled in the area of present-day Charleston, South Carolina. In 1685, Rev. Elie Prioleau from the town of Pons in France, was among the first to settle there. He became pastor of the first Huguenot church in North America in that city. After the Revocation of the Edict of Nantes in 1685, several Huguenot families of Norman and Carolingian nobility and descent, including Edmund Bohun of Suffolk England from the Humphrey de Bohun line of French royalty descended from Charlemagne, Jean Postell of Dieppe France, Alexander Pepin, Antoine Poitevin of Orsement France, and Jacques de Bordeaux of Grenoble, immigrated to the Charleston Orange district. They were very successful at marriage and property speculation. After petitioning the British Crown in 1697 for the right to own land in the Baronies, they prospered as slave owners on the Cooper, Ashepoo, Ashley and Santee River plantations they purchased from the British Landgrave Edmund Bellinger. Some of their descendants moved into the Deep South and Texas, where they developed new plantations.
Try to answer this question if possible (otherwise reply "unanswerable"): In what year was Charleston, North Carolina founded?


As of April 2014, there are 88 private schools in New Zealand, catering for around 28,000 students or 3.7% of the entire student population. Private school numbers have been in decline since the mid-1970s as a result of many private schools opting to become state-integrated schools, mostly due of financial difficulties stemming from changes in student numbers and/or the economy. State-integrated schools keep their private school special character and receives state funds in return for having to operate like a state school, e.g. they must teach the state curriculum, they must employ registered teachers, and they can't charge tuition fees (they can charge "attendance dues" for the upkeep on the still-private school land and buildings). The largest decline in private school numbers occurred between 1979 and 1984, when the nation's then-private Catholic school system integrated. As a result, private schools in New Zealand are now largely restricted to the largest cities (Auckland, Hamilton, Wellington and Christchurch) and niche markets.
Try to answer this question if possible (otherwise reply "unanswerable"): How many private schools existed in New Zealand in April 2014?


Read this: In 2006, a toxic waste spill off the coast of Côte d'Ivoire, from a European ship, prompted the Commission to look into legislation against toxic waste. Environment Commissioner Stavros Dimas stated that "Such highly toxic waste should never have left the European Union". With countries such as Spain not even having a crime against shipping toxic waste, Franco Frattini, the Justice, Freedom and Security Commissioner, proposed with Dimas to create criminal sentences for "ecological crimes". The competence for the Union to do this was contested in 2005 at the Court of Justice resulting in a victory for the Commission. That ruling set a precedent that the Commission, on a supranational basis, may legislate in criminal law – something never done before. So far, the only other proposal has been the draft intellectual property rights directive. Motions were tabled in the European Parliament against that legislation on the basis that criminal law should not be an EU competence, but was rejected at vote. However, in October 2007, the Court of Justice ruled that the Commission could not propose what the criminal sanctions could be, only that there must be some.

What did Franco Frattini, the Justice, Freedom and Security Commissioner, and Dimas reject?
What is the answer? (If it cannot be answered, return "unanswerable")


Read this: The executive summary of the WG I Summary for Policymakers report says they are certain that emissions resulting from human activities are substantially increasing the atmospheric concentrations of the greenhouse gases, resulting on average in an additional warming of the Earth's surface. They calculate with confidence that CO2 has been responsible for over half the enhanced greenhouse effect. They predict that under a "business as usual" (BAU) scenario, global mean temperature will increase by about 0.3 °C per decade during the [21st] century. They judge that global mean surface air temperature has increased by 0.3 to 0.6 °C over the last 100 years, broadly consistent with prediction of climate models, but also of the same magnitude as natural climate variability. The unequivocal detection of the enhanced greenhouse effect is not likely for a decade or more.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): How much are CO2 levels expected to increase over the next 100 years?


Read this: Emperor Gegeen Khan, Ayurbarwada's son and successor, ruled for only two years, from 1321 to 1323. He continued his father's policies to reform the government based on the Confucian principles, with the help of his newly appointed grand chancellor Baiju. During his reign, the Da Yuan Tong Zhi (Chinese: 大元通制, "the comprehensive institutions of the Great Yuan"), a huge collection of codes and regulations of the Yuan dynasty begun by his father, was formally promulgated. Gegeen was assassinated in a coup involving five princes from a rival faction, perhaps steppe elite opposed to Confucian reforms. They placed Yesün Temür (or Taidingdi) on the throne, and, after an unsuccessful attempt to calm the princes, he also succumbed to regicide.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What did 'Da Yuan Tong Zhi' mean?


What is a question about this article? If the question is unanswerable, say "unanswerable".

Pharmacy informatics is the combination of pharmacy practice science and applied information science. Pharmacy informaticists work in many practice areas of pharmacy, however, they may also work in information technology departments or for healthcare information technology vendor companies. As a practice area and specialist domain, pharmacy informatics is growing quickly to meet the needs of major national and international patient information projects and health system interoperability goals. Pharmacists in this area are trained to participate in medication management system development, deployment and optimization.

What fields may pharmacy informatics not work in?


Read this: Many types of Turing machines are used to define complexity classes, such as deterministic Turing machines, probabilistic Turing machines, non-deterministic Turing machines, quantum Turing machines, symmetric Turing machines and alternating Turing machines. They are all equally powerful in principle, but when resources (such as time or space) are bounded, some of these may be more powerful than others.

In the determination of complexity classes, what are two examples of types of Turing machines?
What is the answer? (If it cannot be answered, return "unanswerable")


The final years of the Yuan dynasty were marked by struggle, famine, and bitterness among the populace. In time, Kublai Khan's successors lost all influence on other Mongol lands across Asia, while the Mongols beyond the Middle Kingdom saw them as too Chinese. Gradually, they lost influence in China as well. The reigns of the later Yuan emperors were short and marked by intrigues and rivalries. Uninterested in administration, they were separated from both the army and the populace, and China was torn by dissension and unrest. Outlaws ravaged the country without interference from the weakening Yuan armies.

Answer this question, if possible (if impossible, reply "unanswerable"):  What were the Yuan armies too strong to stop?


Read this: Unlike animals, plants lack phagocytic cells, but many plant immune responses involve systemic chemical signals that are sent through a plant. Individual plant cells respond to molecules associated with pathogens known as Pathogen-associated molecular patterns or PAMPs. When a part of a plant becomes infected, the plant produces a localized hypersensitive response, whereby cells at the site of infection undergo rapid apoptosis to prevent the spread of the disease to other parts of the plant. Systemic acquired resistance (SAR) is a type of defensive response used by plants that renders the entire plant resistant to a particular infectious agent. RNA silencing mechanisms are particularly important in this systemic response as they can block virus replication.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What is unimportant in SAR?


Read this and answer the question. If the question is unanswerable, say "unanswerable".

Soon after the Normans began to enter Italy, they entered the Byzantine Empire and then Armenia, fighting against the Pechenegs, the Bulgars, and especially the Seljuk Turks. Norman mercenaries were first encouraged to come to the south by the Lombards to act against the Byzantines, but they soon fought in Byzantine service in Sicily. They were prominent alongside Varangian and Lombard contingents in the Sicilian campaign of George Maniaces in 1038–40. There is debate whether the Normans in Greek service actually were from Norman Italy, and it now seems likely only a few came from there. It is also unknown how many of the "Franks", as the Byzantines called them, were Normans and not other Frenchmen.

Who did the Normans fight in Italy?


Read this: A computational problem can be viewed as an infinite collection of instances together with a solution for every instance. The input string for a computational problem is referred to as a problem instance, and should not be confused with the problem itself. In computational complexity theory, a problem refers to the abstract question to be solved. In contrast, an instance of this problem is a rather concrete utterance, which can serve as the input for a decision problem. For example, consider the problem of primality testing. The instance is a number (e.g. 15) and the solution is "yes" if the number is prime and "no" otherwise (in this case "no"). Stated another way, the instance is a particular input to the problem, and the solution is the output corresponding to the given input.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): In computational complexity theory, what is the term given to describe the baseline abstract question needing to be solved?


On August 15, 1971, the United States unilaterally pulled out of the Bretton Woods Accord. The US abandoned the Gold Exchange Standard whereby the value of the dollar had been pegged to the price of gold and all other currencies were pegged to the dollar, whose value was left to "float" (rise and fall according to market demand). Shortly thereafter, Britain followed, floating the pound sterling. The other industrialized nations followed suit with their respective currencies. Anticipating that currency values would fluctuate unpredictably for a time, the industrialized nations increased their reserves (by expanding their money supplies) in amounts far greater than before. The result was a depreciation of the dollar and other industrialized nations' currencies. Because oil was priced in dollars, oil producers' real income decreased. In September 1971, OPEC issued a joint communiqué stating that, from then on, they would price oil in terms of a fixed amount of gold.
Try to answer this question if possible (otherwise reply "unanswerable"): What did Britain do in September 1971?


There are three major types of rock: igneous, sedimentary, and metamorphic. The rock cycle is an important concept in geology which illustrates the relationships between these three types of rock, and magma. When a rock crystallizes from melt (magma and/or lava), it is an igneous rock. This rock can be weathered and eroded, and then redeposited and lithified into a sedimentary rock, or be turned into a metamorphic rock due to heat and pressure that change the mineral content of the rock which gives it a characteristic fabric. The sedimentary rock can then be subsequently turned into a metamorphic rock due to heat and pressure and is then weathered, eroded, deposited, and lithified, ultimately becoming a sedimentary rock. Sedimentary rock may also be re-eroded and redeposited, and metamorphic rock may also undergo additional metamorphism. All three types of rocks may be re-melted; when this happens, a new magma is formed, from which an igneous rock may once again crystallize.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What does heat prevent from changing in the crystallization process?


The steam engine contributed much to the development of thermodynamic theory; however, the only applications of scientific theory that influenced the steam engine were the original concepts of harnessing the power of steam and atmospheric pressure and knowledge of properties of heat and steam. The experimental measurements made by Watt on a model steam engine led to the development of the separate condenser. Watt independently discovered latent heat, which was confirmed by the original discoverer Joseph Black, who also advised Watt on experimental procedures. Watt was also aware of the change in the boiling point of water with pressure. Otherwise, the improvements to the engine itself were more mechanical in nature. The thermodynamic concepts of the Rankine cycle did give engineers the understanding needed to calculate efficiency which aided the development of modern high-pressure and -temperature boilers and the steam turbine.

Answer this question, if possible (if impossible, reply "unanswerable"): What scientific field's theory has received contributions from the steam engine?


One of the most famous people born in Warsaw was Maria Skłodowska-Curie, who achieved international recognition for her research on radioactivity and was the first female recipient of the Nobel Prize. Famous musicians include Władysław Szpilman and Frédéric Chopin. Though Chopin was born in the village of Żelazowa Wola, about 60 km (37 mi) from Warsaw, he moved to the city with his family when he was seven months old. Casimir Pulaski, a Polish general and hero of the American Revolutionary War, was born here in 1745.
Who was one of the most famous people born in Wola? (If the question is unanswerable, say "unanswerable")


What is a question about this article? If the question is unanswerable, say "unanswerable".

BSkyB utilises the VideoGuard pay-TV scrambling system owned by NDS, a Cisco Systems company. There are tight controls over use of VideoGuard decoders; they are not available as stand-alone DVB CAMs (conditional-access modules). BSkyB has design authority over all digital satellite receivers capable of receiving their service. The receivers, though designed and built by different manufacturers, must conform to the same user interface look-and-feel as all the others. This extends to the Personal video recorder (PVR) offering (branded Sky+).

What is available as stand-alone DVB CAMs?


Cultural imperialism is when a country's influence is felt in social and cultural circles, i.e. its soft power, such that it changes the moral, cultural and societal worldview of another. This is more than just "foreign" music, television or film becoming popular with young people, but that popular culture changing their own expectations of life and their desire for their own country to become more like the foreign country depicted. For example, depictions of opulent American lifestyles in the soap opera Dallas during the Cold War changed the expectations of Romanians; a more recent example is the influence of smuggled South Korean drama series in North Korea. The importance of soft power is not lost on authoritarian regimes, fighting such influence with bans on foreign popular culture, control of the internet and unauthorised satellite dishes etc. Nor is such a usage of culture recent, as part of Roman imperialism local elites would be exposed to the benefits and luxuries of Roman culture and lifestyle, with the aim that they would then become willing participants.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): When imperialism does not impact social norms of a state, what is it called?


What is a question about this article? If the question is unanswerable, say "unanswerable".

Microorganisms or toxins that successfully enter an organism encounter the cells and mechanisms of the innate immune system. The innate response is usually triggered when microbes are identified by pattern recognition receptors, which recognize components that are conserved among broad groups of microorganisms, or when damaged, injured or stressed cells send out alarm signals, many of which (but not all) are recognized by the same receptors as those that recognize pathogens. Innate immune defenses are non-specific, meaning these systems respond to pathogens in a generic way. This system does not confer long-lasting immunity against a pathogen. The innate immune system is the dominant system of host defense in most organisms.

For most organisms, what is the dominant system of defense?


The property of being prime (or not) is called primality. A simple but slow method of verifying the primality of a given number n is known as trial division. It consists of testing whether n is a multiple of any integer between 2 and . Algorithms much more efficient than trial division have been devised to test the primality of large numbers. These include the Miller–Rabin primality test, which is fast but has a small probability of error, and the AKS primality test, which always produces the correct answer in polynomial time but is too slow to be practical. Particularly fast methods are available for numbers of special forms, such as Mersenne numbers. As of January 2016[update], the largest known prime number has 22,338,618 decimal digits.
As of January 2016 how many primalities does the largest known prime consists of? (If the question is unanswerable, say "unanswerable")


For many native populations, the elimination of French power in North America meant the disappearance of a strong ally and counterweight to British expansion, leading to their ultimate dispossession. The Ohio Country was particularly vulnerable to legal and illegal settlement due to the construction of military roads to the area by Braddock and Forbes. Although the Spanish takeover of the Louisiana territory (which was not completed until 1769) had modest repercussions, the British takeover of Spanish Florida resulted in the westward migration of tribes that did not want to do business with the British, and a rise in tensions between the Choctaw and the Creek, historic enemies whose divisions the British at times exploited. The change of control in Florida also prompted most of its Spanish Catholic population to leave. Most went to Cuba, including the entire governmental records from St. Augustine, although some Christianized Yamasee were resettled to the coast of Mexico.

Answer this question, if possible (if impossible, reply "unanswerable"): What made Ohio Country safe?


The modern trend in design is toward integration of previously separated specialties, especially among large firms. In the past, architects, interior designers, engineers, developers, construction managers, and general contractors were more likely to be entirely separate companies, even in the larger firms. Presently, a firm that is nominally an "architecture" or "construction management" firm may have experts from all related fields as employees, or to have an associated company that provides each necessary skill. Thus, each such firm may offer itself as "one-stop shopping" for a construction project, from beginning to end. This is designated as a "design build" contract where the contractor is given a performance specification and must undertake the project from design to construction, while adhering to the performance specifications.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): The modern trend in design is toward integration of what?


What is a question about this article? If the question is unanswerable, say "unanswerable".

Europe's expansion into territorial imperialism was largely focused on economic growth by collecting resources from colonies, in combination with assuming political control by military and political means. The colonization of India in the mid-18th century offers an example of this focus: there, the "British exploited the political weakness of the Mughal state, and, while military activity was important at various times, the economic and administrative incorporation of local elites was also of crucial significance" for the establishment of control over the subcontinent's resources, markets, and manpower. Although a substantial number of colonies had been designed to provide economic profit and to ship resources to home ports in the seventeenth and eighteenth centuries, Fieldhouse suggests that in the nineteenth and twentieth centuries in places such as Africa and Asia, this idea is not necessarily valid:

 What did European empires not rely on to supply them with resources?


For a long time, it was thought that the Amazon rainforest was only ever sparsely populated, as it was impossible to sustain a large population through agriculture given the poor soil. Archeologist Betty Meggers was a prominent proponent of this idea, as described in her book Amazonia: Man and Culture in a Counterfeit Paradise. She claimed that a population density of 0.2 inhabitants per square kilometre (0.52/sq mi) is the maximum that can be sustained in the rainforest through hunting, with agriculture needed to host a larger population. However, recent anthropological findings have suggested that the region was actually densely populated. Some 5 million people may have lived in the Amazon region in AD 1500, divided between dense coastal settlements, such as that at Marajó, and inland dwellers. By 1900 the population had fallen to 1 million and by the early 1980s it was less than 200,000.
Try to answer this question if possible (otherwise reply "unanswerable"): What well-known archeologist believed the Amazon didn't have many inhabitants?


In what became known as the St. Bartholomew's Day Massacre of 24 August – 3 October 1572, Catholics killed thousands of Huguenots in Paris. Similar massacres took place in other towns in the weeks following. The main provincial towns and cities experiencing the Massacre were Aix, Bordeaux, Bourges, Lyons, Meaux, Orleans, Rouen, Toulouse, and Troyes. Nearly 3,000 Protestants were slaughtered in Toulouse alone. The exact number of fatalities throughout the country is not known. On 23–24 August, between about 2,000 and 3,000 Protestants were killed in Paris and between 3,000 and 7,000 more in the French provinces. By 17 September, almost 25,000 Protestants had been massacred in Paris alone. Beyond Paris, the killings continued until 3 October. An amnesty granted in 1573 pardoned the perpetrators.[citation needed]
Try to answer this question if possible (otherwise reply "unanswerable"): How many Huguenots were killed altogether in France?


The University of Chicago (UChicago, Chicago, or U of C) is a private research university in Chicago. The university, established in 1890, consists of The College, various graduate programs, interdisciplinary committees organized into four academic research divisions and seven professional schools. Beyond the arts and sciences, Chicago is also well known for its professional schools, which include the Pritzker School of Medicine, the University of Chicago Booth School of Business, the Law School, the School of Social Service Administration, the Harris School of Public Policy Studies, the Graham School of Continuing Liberal and Professional Studies and the Divinity School. The university currently enrolls approximately 5,000 students in the College and around 15,000 students overall.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many academic research divisions does the University of Chicago have?


Computational complexity theory:

Problems that can be solved in theory (e.g., given large but finite time), but which in practice take too long for their solutions to be useful, are known as intractable problems. In complexity theory, problems that lack polynomial-time solutions are considered to be intractable for more than the smallest inputs. In fact, the Cobham–Edmonds thesis states that only those problems that can be solved in polynomial time can be feasibly computed on some computational device. Problems that are known to be intractable in this sense include those that are EXPTIME-hard. If NP is not the same as P, then the NP-complete problems are also intractable in this sense. To see why exponential-time algorithms might be unusable in practice, consider a program that makes 2n operations before halting. For small n, say 100, and assuming for the sake of example that the computer does 1012 operations each second, the program would run for about 4 × 1010 years, which is the same order of magnitude as the age of the universe. Even with a much faster computer, the program would only be useful for very small instances and in that sense the intractability of a problem is somewhat independent of technological progress. Nevertheless, a polynomial time algorithm is not always practical. If its running time is, say, n15, it is unreasonable to consider it efficient and it is still useless except on small instances.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Problems capable of theoretical solutions but consuming unreasonable time in practical application are known as what?


Read this: The UChicago Arts program joins academic departments and programs in the Division of the Humanities and the College, as well as professional organizations including the Court Theatre, the Oriental Institute, the Smart Museum of Art, the Renaissance Society, University of Chicago Presents, and student arts organizations. The university has an artist-in-residence program and scholars in performance studies, contemporary art criticism, and film history. It has offered a doctorate in music composition since 1933 and in Cinema & Media studies since 2000, a master of fine arts in visual arts (early 1970s), and a master of arts in the humanities with a creative writing track (2000). It has bachelor's degree programs in visual arts, music, and art history, and, more recently, Cinema & Media studies (1996) and theater & performance studies (2002). The College's general education core includes a “dramatic, music, and visual arts” requirement, requiring students to study the history of the arts, stage desire, or begin working with sculpture. Several thousand major and non-major undergraduates enroll annually in creative and performing arts classes. UChicago is often considered the birthplace of improvisational comedy as the Compass Players student comedy troupe evolved into The Second City improv theater troupe in 1959. The Reva and David Logan Center for the Arts opened in October 2012, five years after a $35 million gift from alumnus David Logan and his wife Reva. The center includes spaces for exhibitions, performances, classes, and media production. The Logan Center was designed by Tod Williams and Billie Tsien. This building is actually entirely glass. The brick is a facade designed to keep the glass safe from the wind. The architects later removed sections of the bricks when pressure arose in the form of complaints that the views of the city were blocked.

What type of requirement does the College's common core require?
What is the answer? (If it cannot be answered, return "unanswerable")


Scottish Parliament:

Under the Scotland Act 1998, ordinary general elections for the Scottish Parliament are held on the first Thursday in May every four years (1999, 2003, 2007 and so on). The date of the poll may be varied by up to one month either way by the Monarch on the proposal of the Presiding Officer. If the Parliament itself resolves that it should be dissolved (with at least two-thirds of the Members voting in favour), or if the Parliament fails to nominate one of its members to be First Minister within 28 days of a General Election or of the position becoming vacant, the Presiding Officer proposes a date for an extraordinary general election and the Parliament is dissolved by the Queen by royal proclamation. Extraordinary general elections are in addition to ordinary general elections, unless held less than six months before the due date of an ordinary general election, in which case they supplant it. The following ordinary election reverts to the first Thursday in May, a multiple of four years after 1999 (i.e., 5 May 2011, 7 May 2015, etc.).

Please answer a question about this article. If the question is unanswerable, say "unanswerable". If an extraordinary election is held within less than six months before the date of an ordinary election, what does it do to the ordinary election?


Huguenot:

Other evidence of the Walloons and Huguenots in Canterbury includes a block of houses in Turnagain Lane, where weavers' windows survive on the top floor, as many Huguenots worked as weavers. The Weavers, a half-timbered house by the river, was the site of a weaving school from the late 16th century to about 1830. (It has been adapted as a restaurant—see illustration above. The house derives its name from a weaving school which was moved there in the last years of the 19th century, reviving an earlier use.) Others refugees practised the variety of occupations necessary to sustain the community as distinct from the indigenous population. Such economic separation was the condition of the refugees' initial acceptance in the City. They also settled elsewhere in Kent, particularly Sandwich, Faversham and Maidstone—towns in which there used to be refugee churches.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Where did Huguenots and Walloons settle in England?


Warsaw:

The plain moraine plateau has only a few natural and artificial ponds and also groups of clay pits. The pattern of the Vistula terraces is asymmetrical. The left side consist mainly of two levels: the highest one contains former flooded terraces and the lowest one the flood plain terrace. The contemporary flooded terrace still has visible valleys and ground depressions with water systems coming from the Vistula old – riverbed. They consist of still quite natural streams and lakes as well as the pattern of drainage ditches. The right side of Warsaw has a different pattern of geomorphological forms. There are several levels of the plain Vistula terraces (flooded as well as former flooded once) and only small part and not so visible moraine escarpment. Aeolian sand with a number of dunes parted by peat swamps or small ponds cover the highest terrace. These are mainly forested areas (pine forest).

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Where can Aeolian sand with a number of dunes be found?


The centrifugal governor was adopted by James Watt for use on a steam engine in 1788 after Watt’s partner Boulton saw one at a flour mill Boulton & Watt were building. The governor could not actually hold a set speed, because it would assume a new constant speed in response to load changes. The governor was able to handle smaller variations such as those caused by fluctuating heat load to the boiler. Also, there was a tendency for oscillation whenever there was a speed change. As a consequence, engines equipped only with this governor were not suitable for operations requiring constant speed, such as cotton spinning. The governor was improved over time and coupled with variable steam cut off, good speed control in response to changes in load was attainable near the end of the 19th century.
What were the centrifugal changes in load incapable of doing? (If the question is unanswerable, say "unanswerable")


Rhine:

Through stream capture, the Rhine extended its watershed southward. By the Pliocene period, the Rhine had captured streams down to the Vosges Mountains, including the Mosel, the Main and the Neckar. The northern Alps were then drained by the Rhone. By the early Pleistocene period, the Rhine had captured most of its current Alpine watershed from the Rhône, including the Aar. Since that time, the Rhine has added the watershed above Lake Constance (Vorderrhein, Hinterrhein, Alpenrhein; captured from the Rhône), the upper reaches of the Main, beyond Schweinfurt and the Vosges Mountains, captured from the Meuse, to its watershed.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What captured the Vosges Mountains?


Among the most important classes of organic compounds that contain oxygen are (where "R" is an organic group): alcohols (R-OH); ethers (R-O-R); ketones (R-CO-R); aldehydes (R-CO-H); carboxylic acids (R-COOH); esters (R-COO-R); acid anhydrides (R-CO-O-CO-R); and amides (R-C(O)-NR
2). There are many important organic solvents that contain oxygen, including: acetone, methanol, ethanol, isopropanol, furan, THF, diethyl ether, dioxane, ethyl acetate, DMF, DMSO, acetic acid, and formic acid. Acetone ((CH
3)
2CO) and phenol (C
6H
5OH) are used as feeder materials in the synthesis of many different substances. Other important organic compounds that contain oxygen are: glycerol, formaldehyde, glutaraldehyde, citric acid, acetic anhydride, and acetamide. Epoxides are ethers in which the oxygen atom is part of a ring of three atoms.

Answer this question, if possible (if impossible, reply "unanswerable"): What important solvents contain oxygen?


Steam engine:

Uniflow engines attempt to remedy the difficulties arising from the usual counterflow cycle where, during each stroke, the port and the cylinder walls will be cooled by the passing exhaust steam, whilst the hotter incoming admission steam will waste some of its energy in restoring working temperature. The aim of the uniflow is to remedy this defect and improve efficiency by providing an additional port uncovered by the piston at the end of each stroke making the steam flow only in one direction. By this means, the simple-expansion uniflow engine gives efficiency equivalent to that of classic compound systems with the added advantage of superior part-load performance, and comparable efficiency to turbines for smaller engines below one thousand horsepower. However, the thermal expansion gradient uniflow engines produce along the cylinder wall gives practical difficulties.[citation needed]. The Quasiturbine is a uniflow rotary steam engine where steam intakes in hot areas, while exhausting in cold areas.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What part is added to the expansion gradient to resolve the issue in the counterflow cycle?


The Free Movement of Workers Regulation articles 1 to 7 set out the main provisions on equal treatment of workers. First, articles 1 to 4 generally require that workers can take up employment, conclude contracts, and not suffer discrimination compared to nationals of the member state. In a famous case, the Belgian Football Association v Bosman, a Belgian footballer named Jean-Marc Bosman claimed that he should be able to transfer from R.F.C. de Liège to USL Dunkerque when his contract finished, regardless of whether Dunkerque could afford to pay Liège the habitual transfer fees. The Court of Justice held "the transfer rules constitute[d] an obstacle to free movement" and were unlawful unless they could be justified in the public interest, but this was unlikely. In Groener v Minister for Education the Court of Justice accepted that a requirement to speak Gaelic to teach in a Dublin design college could be justified as part of the public policy of promoting the Irish language, but only if the measure was not disproportionate. By contrast in Angonese v Cassa di Risparmio di Bolzano SpA a bank in Bolzano, Italy, was not allowed to require Mr Angonese to have a bilingual certificate that could only be obtained in Bolzano. The Court of Justice, giving "horizontal" direct effect to TFEU article 45, reasoned that people from other countries would have little chance of acquiring the certificate, and because it was "impossible to submit proof of the required linguistic knowledge by any other means", the measure was disproportionate. Second, article 7(2) requires equal treatment in respect of tax. In Finanzamt Köln Altstadt v Schumacker the Court of Justice held that it contravened TFEU art 45 to deny tax benefits (e.g. for married couples, and social insurance expense deductions) to a man who worked in Germany, but was resident in Belgium when other German residents got the benefits. By contrast in Weigel v Finanzlandesdirektion für Vorarlberg the Court of Justice rejected Mr Weigel's claim that a re-registration charge upon bringing his car to Austria violated his right to free movement. Although the tax was "likely to have a negative bearing on the decision of migrant workers to exercise their right to freedom of movement", because the charge applied equally to Austrians, in absence of EU legislation on the matter it had to be regarded as justified. Third, people must receive equal treatment regarding "social advantages", although the Court has approved residential qualifying periods. In Hendrix v Employee Insurance Institute the Court of Justice held that a Dutch national was not entitled to continue receiving incapacity benefits when he moved to Belgium, because the benefit was "closely linked to the socio-economic situation" of the Netherlands. Conversely, in Geven v Land Nordrhein-Westfalen the Court of Justice held that a Dutch woman living in the Netherlands, but working between 3 and 14 hours a week in Germany, did not have a right to receive German child benefits, even though the wife of a man who worked full-time in Germany but was resident in Austria could. The general justifications for limiting free movement in TFEU article 45(3) are "public policy, public security or public health", and there is also a general exception in article 45(4) for "employment in the public service".
Which Belgian footballer claimed that he should be allowed to transfer from one football club to another when his contract was fulfilled? (If the question is unanswerable, say "unanswerable")


Geology:

Extension causes the rock units as a whole to become longer and thinner. This is primarily accomplished through normal faulting and through the ductile stretching and thinning. Normal faults drop rock units that are higher below those that are lower. This typically results in younger units being placed below older units. Stretching of units can result in their thinning; in fact, there is a location within the Maria Fold and Thrust Belt in which the entire sedimentary sequence of the Grand Canyon can be seen over a length of less than a meter. Rocks at the depth to be ductilely stretched are often also metamorphosed. These stretched rocks can also pinch into lenses, known as boudins, after the French word for "sausage", because of their visual similarity.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What is another word for thinning rocks in French?


Immediately after Decision Time a "Members Debate" is held, which lasts for 45 minutes. Members Business is a debate on a motion proposed by an MSP who is not a Scottish minister. Such motions are on issues which may be of interest to a particular area such as a member's own constituency, an upcoming or past event or any other item which would otherwise not be accorded official parliamentary time. As well as the proposer, other members normally contribute to the debate. The relevant minister, whose department the debate and motion relate to "winds up" the debate by speaking after all other participants.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What debate lasts for 55 minutes?


The Rhine-Meuse Delta, the most important natural region of the Netherlands begins near Millingen aan de Rijn, close to the Dutch-German border with the division of the Rhine into Waal and Nederrijn. Since the Rhine contributes most of the water, the shorter term Rhine Delta is commonly used. However, this name is also used for the river delta where the Rhine flows into Lake Constance, so it is clearer to call the larger one Rhine-Meuse delta, or even Rhine–Meuse–Scheldt delta, as the Scheldt ends in the same delta.

Answer this question, if possible (if impossible, reply "unanswerable"): What is the nickname for the Delta in the Netherlands?


In 1781 James Watt patented a steam engine that produced continuous rotary motion. Watt's ten-horsepower engines enabled a wide range of manufacturing machinery to be powered. The engines could be sited anywhere that water and coal or wood fuel could be obtained. By 1883, engines that could provide 10,000 hp had become feasible. The stationary steam engine was a key component of the Industrial Revolution, allowing factories to locate where water power was unavailable. The atmospheric engines of Newcomen and Watt were large compared to the amount of power they produced, but high pressure steam engines were light enough to be applied to vehicles such as traction engines and the railway locomotives.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): As of what year were 1700 horsepower engines available?


Private schooling in the United States has been debated by educators, lawmakers and parents, since the beginnings of compulsory education in Massachusetts in 1852. The Supreme Court precedent appears to favor educational choice, so long as states may set standards for educational accomplishment. Some of the most relevant Supreme Court case law on this is as follows: Runyon v. McCrary, 427 U.S. 160 (1976); Wisconsin v. Yoder, 406 U.S. 205 (1972); Pierce v. Society of Sisters, 268 U.S. 510 (1925); Meyer v. Nebraska, 262 U.S. 390 (1923).

Answer this question, if possible (if impossible, reply "unanswerable"): In what year was Wisconsin v. Yoder decided at the Supreme Court?


Read this: More than 26,000 square kilometres (10,000 sq mi) of Victorian farmland are sown for grain, mostly in the state's west. More than 50% of this area is sown for wheat, 33% for barley and 7% for oats. A further 6,000 square kilometres (2,300 sq mi) is sown for hay. In 2003–04, Victorian farmers produced more than 3 million tonnes of wheat and 2 million tonnes of barley. Victorian farms produce nearly 90% of Australian pears and third of apples. It is also a leader in stone fruit production. The main vegetable crops include asparagus, broccoli, carrots, potatoes and tomatoes. Last year, 121,200 tonnes of pears and 270,000 tonnes of tomatoes were produced.

How much Victorian farmland is farmed in grains?
What is the answer? (If it cannot be answered, return "unanswerable")


Read this and answer the question. If the question is unanswerable, say "unanswerable".

In Afghanistan, the mujahideen's victory against the Soviet Union in the 1980s did not lead to justice and prosperity, due to a vicious and destructive civil war between political and tribal warlords, making Afghanistan one of the poorest countries on earth. In 1992, the Democratic Republic of Afghanistan ruled by communist forces collapsed, and democratic Islamist elements of mujahdeen founded the Islamic State of Afghanistan. In 1996, a more conservative and anti-democratic Islamist movement known as the Taliban rose to power, defeated most of the warlords and took over roughly 80% of Afghanistan.

Unsurprisingly, the mujahideen's victory against the Soviets in the 1980s failed to produce what?


From 2005 to 2014, there were two Major League Soccer teams in Los Angeles — the LA Galaxy and Chivas USA — that both played at the StubHub Center and were local rivals. However, Chivas were suspended following the 2014 MLS season, with a second MLS team scheduled to return in 2018.
Try to answer this question if possible (otherwise reply "unanswerable"): Which team was suspended from the MLS?


Read this: Although the European Union does not have a codified constitution, like every political body it has laws which "constitute" its basic governance structure. The EU's primary constitutional sources are the Treaty on European Union (TEU) and the Treaty on the Functioning of the European Union (TFEU), which have been agreed or adhered to among the governments of all 28 member states. The Treaties establish the EU's institutions, list their powers and responsibilities, and explain the areas in which the EU can legislate with Directives or Regulations. The European Commission has the initiative to propose legislation. During the ordinary legislative procedure, the Council (which are ministers from member state governments) and the European Parliament (elected by citizens) can make amendments and must give their consent for laws to pass. The Commission oversees departments and various agencies that execute or enforce EU law. The "European Council" (rather than the Council, made up of different government Ministers) is composed of the Prime Ministers or executive Presidents of the member states. It appoints the Commissioners and the board of the European Central Bank. The European Court of Justice is the supreme judicial body which interprets EU law, and develops it through precedent. The Court can review the legality of the EU institutions' actions, in compliance with the Treaties. It can also decide upon claims for breach of EU laws from member states and citizens.

What are the primary constitutional sources of the American Union?
What is the answer? (If it cannot be answered, return "unanswerable")


Read this: Paleoclimatologists measure the ratio of oxygen-18 and oxygen-16 in the shells and skeletons of marine organisms to determine what the climate was like millions of years ago (see oxygen isotope ratio cycle). Seawater molecules that contain the lighter isotope, oxygen-16, evaporate at a slightly faster rate than water molecules containing the 12% heavier oxygen-18; this disparity increases at lower temperatures. During periods of lower global temperatures, snow and rain from that evaporated water tends to be higher in oxygen-16, and the seawater left behind tends to be higher in oxygen-18. Marine organisms then incorporate more oxygen-18 into their skeletons and shells than they would in a warmer climate. Paleoclimatologists also directly measure this ratio in the water molecules of ice core samples that are up to several hundreds of thousands of years old.

Who measures oxygen-18 and oxygen-16 in skeletons of all organisms?
What is the answer? (If it cannot be answered, return "unanswerable")


While many homes in the neighborhood date back to the 1930s or before, the neighborhood is also home to several public housing developments built between the 1960s and 1990s by the Fresno Housing Authority. The US Department of Housing and Urban Development has also built small subdivisions of single-family homes in the area for purchase by low-income working families. There have been numerous attempts to revitalize the neighborhood, including the construction of a modern shopping center on the corner of Fresno and B streets, an aborted attempt to build luxury homes and a golf course on the western edge of the neighborhood, and some new section 8 apartments have been built along Church Ave west of Elm St. Cargill Meat Solutions and Foster Farms both have large processing facilities in the neighborhood, and the stench from these (and other small industrial facilities) has long plagued area residents. The Fresno Chandler Executive Airport is also on the West Side. Due to its position on the edge of the city and years of neglect by developers, is not a true "inner-city" neighborhood, and there are many vacant lots, strawberry fields and vineyards throughout the neighborhood. The neighborhood has very little retail activity, aside from the area near Fresno Street and State Route 99 Freeway (Kearney Palm Shopping Center, built in the late 1990s) and small corner markets scattered throughout.
When was State Route 99 Freeway built? (If the question is unanswerable, say "unanswerable")


Another important library – the University Library, founded in 1816, is home to over two million items. The building was designed by architects Marek Budzyński and Zbigniew Badowski and opened on 15 December 1999. It is surrounded by green. The University Library garden, designed by Irena Bajerska, was opened on 12 June 2002. It is one of the largest and most beautiful roof gardens in Europe with an area of more than 10,000 m2 (107,639.10 sq ft), and plants covering 5,111 m2 (55,014.35 sq ft). As the university garden it is open to the public every day.

Answer this question, if possible (if impossible, reply "unanswerable"): How many items is the Zbigniew Library home to?


There have been debates as to whether civil disobedience must necessarily be non-violent. Black's Law Dictionary includes non-violence in its definition of civil disobedience. Christian Bay's encyclopedia article states that civil disobedience requires "carefully chosen and legitimate means," but holds that they do not have to be non-violent. It has been argued that, while both civil disobedience and civil rebellion are justified by appeal to constitutional defects, rebellion is much more destructive; therefore, the defects justifying rebellion must be much more serious than those justifying disobedience, and if one cannot justify civil rebellion, then one cannot justify a civil disobedients' use of force and violence and refusal to submit to arrest. Civil disobedients' refraining from violence is also said to help preserve society's tolerance of civil disobedience.

Answer this question, if possible (if impossible, reply "unanswerable"): Why is it preferred that civil disobedience is non violent?


European Union law:

None of the original treaties establishing the European Union mention protection for fundamental rights. It was not envisaged for European Union measures, that is legislative and administrative actions by European Union institutions, to be subject to human rights. At the time the only concern was that member states should be prevented from violating human rights, hence the establishment of the European Convention on Human Rights in 1950 and the establishment of the European Court of Human Rights. The European Court of Justice recognised fundamental rights as general principle of European Union law as the need to ensure that European Union measures are compatible with the human rights enshrined in member states' constitution became ever more apparent. In 1999 the European Council set up a body tasked with drafting a European Charter of Human Rights, which could form the constitutional basis for the European Union and as such tailored specifically to apply to the European Union and its institutions. The Charter of Fundamental Rights of the European Union draws a list of fundamental rights from the European Convention on Human Rights and Fundamental Freedoms, the Declaration on Fundamental Rights produced by the European Parliament in 1989 and European Union Treaties.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Which entities were originally concerned with preventing violation of human rights?


The shape of the Rhine delta is determined by two bifurcations: first, at Millingen aan de Rijn, the Rhine splits into Waal and Pannerdens Kanaal, which changes its name to Nederrijn at Angeren, and second near Arnhem, the IJssel branches off from the Nederrijn. This creates three main flows, two of which change names rather often. The largest and southern main branch begins as Waal and continues as Boven Merwede ("Upper Merwede"), Beneden Merwede ("Lower Merwede"), Noord River ("North River"), Nieuwe Maas ("New Meuse"), Het Scheur ("the Rip") and Nieuwe Waterweg ("New Waterway"). The middle flow begins as Nederrijn, then changes into Lek, then joins the Noord, thereby forming Nieuwe Maas. The northern flow keeps the name IJssel until it flows into Lake IJsselmeer. Three more flows carry significant amounts of water: the Nieuwe Merwede ("New Merwede"), which branches off from the southern branch where it changes from Boven to Beneden Merwede; the Oude Maas ("Old Meuse"), which branches off from the southern branch where it changes from Beneden Merwede into Noord, and Dordtse Kil, which branches off from Oude Maas.
What is the translation of Oude Maas? (If the question is unanswerable, say "unanswerable")


As northwest Europe slowly began to warm up from 22,000 years ago onward, frozen subsoil and expanded alpine glaciers began to thaw and fall-winter snow covers melted in spring. Much of the discharge was routed to the Rhine and its downstream extension. Rapid warming and changes of vegetation, to open forest, began about 13,000 BP. By 9000 BP, Europe was fully forested. With globally shrinking ice-cover, ocean water levels rose and the English Channel and North Sea re-inundated. Meltwater, adding to the ocean and land subsidence, drowned the former coasts of Europe transgressionally.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many years did it take for the frozen subsoil to warm up?


Read this: Since its invention in 1269, the 'Phags-pa script, a unified script for spelling Mongolian, Tibetan, and Chinese languages, was preserved in the court until the end of the dynasty. Most of the Emperors could not master written Chinese, but they could generally converse well in the language. The Mongol custom of long standing quda/marriage alliance with Mongol clans, the Onggirat, and the Ikeres, kept the imperial blood purely Mongol until the reign of Tugh Temur, whose mother was a Tangut concubine. The Mongol Emperors had built large palaces and pavilions, but some still continued to live as nomads at times. Nevertheless, a few other Yuan emperors actively sponsored cultural activities; an example is Tugh Temur (Emperor Wenzong), who wrote poetry, painted, read Chinese classical texts, and ordered the compilation of books.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"):  How poorly did the Mongol Emperors know spoken Chinese?


In the spring of 1753, Paul Marin de la Malgue was given command of a 2,000-man force of Troupes de la Marine and Indians. His orders were to protect the King's land in the Ohio Valley from the British. Marin followed the route that Céloron had mapped out four years earlier, but where Céloron had limited the record of French claims to the burial of lead plates, Marin constructed and garrisoned forts. He first constructed Fort Presque Isle (near present-day Erie, Pennsylvania) on Lake Erie's south shore. He had a road built to the headwaters of LeBoeuf Creek. Marin constructed a second fort at Fort Le Boeuf (present-day Waterford, Pennsylvania), designed to guard the headwaters of LeBoeuf Creek. As he moved south, he drove off or captured British traders, alarming both the British and the Iroquois. Tanaghrisson, a chief of the Mingo, who were remnants of Iroquois and other tribes who had been driven west by colonial expansion. He intensely disliked the French (whom he accused of killing and eating his father). Traveling to Fort Le Boeuf, he threatened the French with military action, which Marin contemptuously dismissed.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): What wasn't Marin's orders?


Read this: Newcastle replaced him in January 1756 with Lord Loudoun, with Major General James Abercrombie as his second in command. Neither of these men had as much campaign experience as the trio of officers France sent to North America. French regular army reinforcements arrived in New France in May 1756, led by Major General Louis-Joseph de Montcalm and seconded by the Chevalier de Lévis and Colonel François-Charles de Bourlamaque, all experienced veterans from the War of the Austrian Succession. During that time in Europe, on May 18, 1756, England formally declared war on France, which expanded the war into Europe, which was later to be known as the Seven Years' War.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): When did England formally declare war on France?


Economic inequality:

Economist Joseph Stiglitz presented evidence in 2009 that both global inequality and inequality within countries prevent growth by limiting aggregate demand. Economist Branko Milanovic, wrote in 2001 that, "The view that income inequality harms growth – or that improved equality can help sustain growth – has become more widely held in recent years. ... The main reason for this shift is the increasing importance of human capital in development. When physical capital mattered most, savings and investments were key. Then it was important to have a large contingent of rich people who could save a greater proportion of their income than the poor and invest it in physical capital. But now that human capital is scarcer than machines, widespread education has become the secret to growth."

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What has been the main reason for the shift to the view that income inequality harms growth?


In most jurisdictions (such as the United States), pharmacists are regulated separately from physicians. These jurisdictions also usually specify that only pharmacists may supply scheduled pharmaceuticals to the public, and that pharmacists cannot form business partnerships with physicians or give them "kickback" payments. However, the American Medical Association (AMA) Code of Ethics provides that physicians may dispense drugs within their office practices as long as there is no patient exploitation and patients have the right to a written prescription that can be filled elsewhere. 7 to 10 percent of American physicians practices reportedly dispense drugs on their own.
How are pharmacists regulated in most jurisdictions? (If the question is unanswerable, say "unanswerable")


University of Chicago:

The University of Chicago Library system encompasses six libraries that contain a total of 9.8 million volumes, the 11th most among library systems in the United States. The university's main library is the Regenstein Library, which contains one of the largest collections of print volumes in the United States. The Joe and Rika Mansueto Library, built in 2011, houses a large study space and an automatic book storage and retrieval system. The John Crerar Library contains more than 1.3 million volumes in the biological, medical and physical sciences and collections in general science and the philosophy and history of science, medicine, and technology. The university also operates a number of special libraries, including the D'Angelo Law Library, the Social Service Administration Library, and the Eckhart Library for mathematics and computer science, which closed temporarily for renovation on July 8, 2013. Harper Memorial Library no longer contains any volumes; however it is, in addition to the Regenstein Library, a 24-hour study space on campus.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". Which University ranks having the 9th most number of volumes in the US?


Warsaw:

There are 13 natural reserves in Warsaw – among others, Bielany Forest, Kabaty Woods, Czerniaków Lake. About 15 kilometres (9 miles) from Warsaw, the Vistula river's environment changes strikingly and features a perfectly preserved ecosystem, with a habitat of animals that includes the otter, beaver and hundreds of bird species. There are also several lakes in Warsaw – mainly the oxbow lakes, like Czerniaków Lake, the lakes in the Łazienki or Wilanów Parks, Kamionek Lake. There are lot of small lakes in the parks, but only a few are permanent – the majority are emptied before winter to clean them of plants and sediments.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". How many natural reserves are in Warsaw?


Despite their soft, gelatinous bodies, fossils thought to represent ctenophores, apparently with no tentacles but many more comb-rows than modern forms, have been found in lagerstätten as far back as the early Cambrian, about 515 million years ago. The position of the ctenophores in the evolutionary family tree of animals has long been debated, and the majority view at present, based on molecular phylogenetics, is that cnidarians and bilaterians are more closely related to each other than either is to ctenophores. A recent molecular phylogenetics analysis concluded that the common ancestor of all modern ctenophores was cydippid-like, and that all the modern groups appeared relatively recently, probably after the Cretaceous–Paleogene extinction event 66 million years ago. Evidence accumulating since the 1980s indicates that the "cydippids" are not monophyletic, in other words do not include all and only the descendants of a single common ancestor, because all the other traditional ctenophore groups are descendants of various cydippids.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): Evidence indicates that Cydippids are not what?


Read this: Large-scale construction requires collaboration across multiple disciplines. An architect normally manages the job, and a construction manager, design engineer, construction engineer or project manager supervises it. For the successful execution of a project, effective planning is essential. Those involved with the design and execution of the infrastructure in question must consider zoning requirements, the environmental impact of the job, the successful scheduling, budgeting, construction-site safety, availability and transportation of building materials, logistics, inconvenience to the public caused by construction delays and bidding, etc. The largest construction projects are referred to as megaprojects.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): What is primarily and independent effort?


Another cause is the rate at which income is taxed coupled with the progressivity of the tax system. A progressive tax is a tax by which the tax rate increases as the taxable base amount increases. In a progressive tax system, the level of the top tax rate will often have a direct impact on the level of inequality within a society, either increasing it or decreasing it, provided that income does not change as a result of the change in tax regime. Additionally, steeper tax progressivity applied to social spending can result in a more equal distribution of income across the board. The difference between the Gini index for an income distribution before taxation and the Gini index after taxation is an indicator for the effects of such taxation.

Answer this question, if possible (if impossible, reply "unanswerable"): What is it called when the tax rate and base amount increase simultaneously?


Geology:

At the beginning of the 20th century, important advancement in geological science was facilitated by the ability to obtain accurate absolute dates to geologic events using radioactive isotopes and other methods. This changed the understanding of geologic time. Previously, geologists could only use fossils and stratigraphic correlation to date sections of rock relative to one another. With isotopic dates it became possible to assign absolute ages to rock units, and these absolute dates could be applied to fossil sequences in which there was datable material, converting the old relative ages into new absolute ages.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". How did the advancement of using fossils help geological science in the early 20th century?


Read this: The largest single sensory feature is the aboral organ (at the opposite end from the mouth). Its main component is a statocyst, a balance sensor consisting of a statolith, a solid particle supported on four bundles of cilia, called "balancers", that sense its orientation. The statocyst is protected by a transparent dome made of long, immobile cilia. A ctenophore does not automatically try to keep the statolith resting equally on all the balancers. Instead its response is determined by the animal's "mood", in other words the overall state of the nervous system. For example, if a ctenophore with trailing tentacles captures prey, it will often put some comb rows into reverse, spinning the mouth towards the prey.

What protects the statocyst?
What is the answer? (If it cannot be answered, return "unanswerable")


When a person’s capabilities are lowered, they are in some way deprived of earning as much income as they would otherwise. An old, ill man cannot earn as much as a healthy young man; gender roles and customs may prevent a woman from receiving an education or working outside the home. There may be an epidemic that causes widespread panic, or there could be rampant violence in the area that prevents people from going to work for fear of their lives. As a result, income and economic inequality increases, and it becomes more difficult to reduce the gap without additional aid. To prevent such inequality, this approach believes it’s important to have political freedom, economic facilities, social opportunities, transparency guarantees, and protective security to ensure that people aren’t denied their functionings, capabilities, and agency and can thus work towards a better relevant income.

Answer this question, if possible (if impossible, reply "unanswerable"): What happens when a person's capabilities aer lowered, as it relates to their income?


All Recognized Student Organizations, from the University of Chicago Scavenger Hunt to Model UN, in addition to academic teams, sports club, arts groups, and more are funded by The University of Chicago Student Government. Student Government is made up of graduate and undergraduate students elected to represent members from their respective academic unit. It is led by an Executive Committee, chaired by a President with the assistance of two Vice Presidents, one for Administration and the other for Student Life, elected together as a slate by the student body each spring. Its annual budget is greater than $2 million.

Answer this question, if possible (if impossible, reply "unanswerable"): Roughly how much is the Student Government's budget?


Since the 1920s, motion pictures, petroleum and aircraft manufacturing have been major industries. In one of the richest agricultural regions in the U.S., cattle and citrus were major industries until farmlands were turned into suburbs. Although military spending cutbacks have had an impact, aerospace continues to be a major factor.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What industry has managed to survive major military spending cutbacks?


What is a question about this article? If the question is unanswerable, say "unanswerable".

In the 1970s, the city was the subject of a song, "Walking Into Fresno", written by Hall Of Fame guitarist Bill Aken and recorded by Bob Gallion of the world-famous "WWVA Jamboree" radio and television show in Wheeling, West Virginia. Aken, adopted by Mexican movie actress Lupe Mayorga, grew up in the neighboring town of Madera and his song chronicled the hardships faced by the migrant farm workers he saw as a child. Aken also made his first TV appearance playing guitar on the old country-western show at The Fresno Barn.

What singer was in the Hall of Fame?


The neighborhood includes Kearney Boulevard, named after early 20th century entrepreneur and millionaire M. Theo Kearney, which extends from Fresno Street in Southwest Fresno about 20 mi (32 km) west to Kerman, California. A small, two-lane rural road for most of its length, Kearney Boulevard is lined with tall palm trees. The roughly half-mile stretch of Kearney Boulevard between Fresno Street and Thorne Ave was at one time the preferred neighborhood for Fresno's elite African-American families. Another section, Brookhaven, on the southern edge of the West Side south of Jensen and west of Elm, was given the name by the Fresno City Council in an effort to revitalize the neighborhood's image. The isolated subdivision was for years known as the "Dogg Pound" in reference to a local gang, and as of late 2008 was still known for high levels of violent crime.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who preferred the Brookhaven section?


Since its foundation, the Treaties sought to enable people to pursue their life goals in any country through free movement. Reflecting the economic nature of the project, the European Community originally focused upon free movement of workers: as a "factor of production". However, from the 1970s, this focus shifted towards developing a more "social" Europe. Free movement was increasingly based on "citizenship", so that people had rights to empower them to become economically and socially active, rather than economic activity being a precondition for rights. This means the basic "worker" rights in TFEU article 45 function as a specific expression of the general rights of citizens in TFEU articles 18 to 21. According to the Court of Justice, a "worker" is anybody who is economically active, which includes everyone in an employment relationship, "under the direction of another person" for "remuneration". A job, however, need not be paid in money for someone to be protected as a worker. For example, in Steymann v Staatssecretaris van Justitie, a German man claimed the right to residence in the Netherlands, while he volunteered plumbing and household duties in the Bhagwan community, which provided for everyone's material needs irrespective of their contributions. The Court of Justice held that Mr Steymann was entitled to stay, so long as there was at least an "indirect quid pro quo" for the work he did. Having "worker" status means protection against all forms of discrimination by governments, and employers, in access to employment, tax, and social security rights. By contrast a citizen, who is "any person having the nationality of a Member State" (TFEU article 20(1)), has rights to seek work, vote in local and European elections, but more restricted rights to claim social security. In practice, free movement has become politically contentious as nationalist political parties have manipulated fears about immigrants taking away people's jobs and benefits (paradoxically at the same time). Nevertheless, practically "all available research finds little impact" of "labour mobility on wages and employment of local workers".
Is there an answer to this question (If it cannot be answered, say "unanswerable"): What was free movement increasingly based on?


Read this: While the Treaties and Regulations will have direct effect (if clear, unconditional and immediate), Directives do not generally give citizens (as opposed to the member state) standing to sue other citizens. In theory, this is because TFEU article 288 says Directives are addressed to the member states and usually "leave to the national authorities the choice of form and methods" to implement. In part this reflects that directives often create minimum standards, leaving member states to apply higher standards. For example, the Working Time Directive requires that every worker has at least 4 weeks paid holidays each year, but most member states require more than 28 days in national law. However, on the current position adopted by the Court of Justice, citizens have standing to make claims based on national laws that implement Directives, but not from Directives themselves. Directives do not have so called "horizontal" direct effect (i.e. between non-state parties). This view was instantly controversial, and in the early 1990s three Advocate Generals persuasively argued that Directives should create rights and duties for all citizens. The Court of Justice refused, but there are five large exceptions.
Now answer this question, if there is an answer (If it cannot be answered, return "unanswerable"): When did the three Advocate Generals argue that Directives should create rights and duties for all citizens?


The results of the Haensch study have since been confirmed and amended. Based on genetic evidence derived from Black Death victims in the East Smithfield burial site in England, Schuenemann et al. concluded in 2011 "that the Black Death in medieval Europe was caused by a variant of Y. pestis that may no longer exist." A study published in Nature in October 2011 sequenced the genome of Y. pestis from plague victims and indicated that the strain that caused the Black Death is ancestral to most modern strains of the disease.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What was Schuenemann's first name?


DECnet is a suite of network protocols created by Digital Equipment Corporation, originally released in 1975 in order to connect two PDP-11 minicomputers. It evolved into one of the first peer-to-peer network architectures, thus transforming DEC into a networking powerhouse in the 1980s. Initially built with three layers, it later (1982) evolved into a seven-layer OSI-compliant networking protocol. The DECnet protocols were designed entirely by Digital Equipment Corporation. However, DECnet Phase II (and later) were open standards with published specifications, and several implementations were developed outside DEC, including one for Linux.
Is there an answer to this question (If it cannot be answered, say "unanswerable"): What did DECnet phase 2 become


The Amazon rainforest (Portuguese: Floresta Amazônica or Amazônia; Spanish: Selva Amazónica, Amazonía or usually Amazonia; French: Forêt amazonienne; Dutch: Amazoneregenwoud), also known in English as Amazonia or the Amazon Jungle, is a moist broadleaf forest that covers most of the Amazon basin of South America. This basin encompasses 7,000,000 square kilometres (2,700,000 sq mi), of which 5,500,000 square kilometres (2,100,000 sq mi) are covered by the rainforest. This region includes territory belonging to nine nations. The majority of the forest is contained within Brazil, with 60% of the rainforest, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Venezuela, Ecuador, Bolivia, Guyana, Suriname and French Guiana. States or departments in four nations contain "Amazonas" in their names. The Amazon represents over half of the planet's remaining rainforests, and comprises the largest and most biodiverse tract of tropical rainforest in the world, with an estimated 390 billion individual trees divided into 16,000 species.

Answer this question, if possible (if impossible, reply "unanswerable"): How many square kilometers is the Amazon Basin?


Among the most well-known experiments in structural geology are those involving orogenic wedges, which are zones in which mountains are built along convergent tectonic plate boundaries. In the analog versions of these experiments, horizontal layers of sand are pulled along a lower surface into a back stop, which results in realistic-looking patterns of faulting and the growth of a critically tapered (all angles remain the same) orogenic wedge. Numerical models work in the same way as these analog models, though they are often more sophisticated and can include patterns of erosion and uplift in the mountain belt. This helps to show the relationship between erosion and the shape of the mountain range. These studies can also give useful information about pathways for metamorphism through pressure, temperature, space, and time.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What are horizontal layers of sand called?


During Reconstruction and the Gilded Age, Jacksonville and nearby St. Augustine became popular winter resorts for the rich and famous. Visitors arrived by steamboat and later by railroad. President Grover Cleveland attended the Sub-Tropical Exposition in the city on February 22, 1888 during his trip to Florida. This highlighted the visibility of the state as a worthy place for tourism. The city's tourism, however, was dealt major blows in the late 19th century by yellow fever outbreaks. In addition, extension of the Florida East Coast Railway further south drew visitors to other areas. From 1893 to 1938 Jacksonville was the site of the Florida Old Confederate Soldiers and Sailors Home with a nearby cemetery.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What drew would-be Jacksonville tourists to other Florida destinations?