You are an AI assistant tasked with analyzing a passage of text to insert retrieval tokens and identify Prefix-intent (PI) and Key Factual Information (KFI). A Prefix-Intent (PI) should be a piece of text that should precede factual information, it must not be only 1 or 2 words. Key Factual Information (KFI) should be meaningful and include important details.

Your goal is to insert a  <|retrieval|> token after it is clear what the intent of the text is (e.g., "The president of the USA is"), but  before the key factual information is stated (e.g., "Joe Biden"). Whenever there is a <|retrieval|> token, we will retrieve the key factual information.

Here is the passage you will be working with:

<passage>
Ya'bad Ya'bad (; ) is a Palestinian town in the northern West Bank, 20 kilometers west of Jenin in the Jenin Governorate. It is a major agricultural town with most of its land covered with olive groves and grain fields. According to the Palestinian Central Bureau of Statistics, the town had a population of 13,640 in 2007. Its mayor is Samer Abu Baker who was elected in 2005. The Israeli settlement of Mevo Dotan is built on Ya'bad's land. History Pottery sherds from the Persian, Hellenistic, early Roman, Byzantine, early Muslim and the Medieval eras have been found here. In 1105, Abd el-Ghani en-Nabulsi, a Moslem traveler, passed by Ya'bad and noted it as “a village between Jenin and Arrabeh”. Ottoman era In 1596 Ya'bad appeared in the Ottoman tax registers as being in the nahiya of Jabal Sami in the liwa of Nablus. It had a population of 62 households, all Muslim. They paid a tax rate of 33,3% on agricultural products, including wheat, barley, summer crops, occasional revenues, goats and beehives, and a press for olives or grapes; a total of 18,085 akçe. Half of the revenue went to a waqf dedicated to Halil ar-Rahman. In the 17th-18th centuries, Ya'bad was well known for producing the best cheese in Jabal Nablus. Politically it was ruled by the Qadri clan allied with the powerful Abd al-Hadi clan. In 1838, it was noted as a Muslim village, Ya'bud, located in the esh–Sha'rawiyeh esh–Shurkiyeh District. In 1870 French explorer Victor Guérin noted Ya'bad situated "on a hill", while in the PEF's Survey of Western Palestine (1882), Yabid was described as "a good-sized stone village, with some Christian families and two factions of Moslems, called respectively the 'Abd el Hady and the Beni Tokan, living in separate quarters. The village stands on a ridge, with a well to the south and a small separate quarter on the east, in which is a small Mukam." British Mandate era In the 1922 census of Palestine, conducted by the British Mandate authorities, Yabid had a population of 1,733, all Muslims, increasing in the 1931 census to a population of 2,383, still all Muslim, in 418 occupied houses. In 1935 the prominent Arab resistance leader Izz ad-Din al-Qassam and a few of his men were killed in a cave near Ya'bad by British forces. In the 1945 statistics the population of Ya'bad (including Khirbat el Khuljan, Khirbat et Tarim, Khirbat Tura ash Sharqiya, Nazlat Sheik Zeid and Khirbat Umm Rihan) was 3,480, all Muslims, with 37,805 dunams of land, according to an official land and population survey. 6,035 dunams were used for plantations and irrigable land, 9,955 dunams for cereals, while 92 dunams were built-up (urban) land. Jordanian era After the 1948 Arab-Israeli War, Ya'bad came under Jordani rule. The Jordanian census of 1961 found 4,709 inhabitants in Ya'bad. Post-1967 After the 1967 Six-Day War, Ya'bad has been under Israeli occupation along with the rest of the West Bank. The population of Ya'bad in the 1967 census conducted by Israel was 4,857, of whom 581 originated from the Israeli territory. In May 1985 five village women set up a Women’s Work Committee which opened a kindergarten for 60 children and started a sewing course with 32 young women. A major charcoal mine is located near Ya'bad and most of its workers come from the town. Since the establishment of "closed-off areas" and the construction of the West Bank Barrier in the northern West Bank, Ya'bad and surrounding cities and towns have seen an increase in unemployment which reached to 88% in 2006. The annual average income
</passage>

Follow these steps to complete the task:

1. Inserting retrieval tokens:
   a. Read through the text carefully.
   b. Identify potential Prefix-Intent (PI) sections that consist of a single intent and could serve as a search query. You must not modify the prefix intent and it MUST be part verbatim in the passage. It cannot be single or only a few words.
   c. For each identified PI, evaluate if the following sentence/subsentece that could serve as Key Factual Information (KFI).
   d. Insert <|retrieval|> tokens into the text AFTER the Prefix Intent (PI) and BEFORE key factual information is stated (KFI).
   e. Key Factual information should not intersect with Prefix Intent.

2. Identifying Prefix-Intent (PI) and Key Factual Information (KFI):
   a. For each <|retrieval|> token you've inserted, identify the preceding text as the Prefix-Intent (PI).
   b. Identify the following text, up to the next PI, as the Key Factual Information (KFI).
   c. Ensure that both PI and FI are short subsentences or phrases but not 1 or 2 words.

3. Insert <|start-PI|>,<|end-PI|>, <|start-KFI|>, <|end-KFI|>.
   a. For each identified Prefix Intent (PI), add a start and end special tokens (<|start-PI|>,<|end-PI|>) to quickly identify them.
   b. Do the same for the Key Factual Information (KFI) (<|start-KFI|>, <|end-KFI|>)
   c. Ensure that the very first PI in the passage is preceded by <|start-PI|>.
   d. Double-check that every PI and KFI is properly enclosed in these tags.

4. Describing ideal retrieved information:
   a. Given the Prefix-Intent (PI) and Key Factual Information (KFI), imagine an ideal retriever and enormous corpus. 
   b. Using the retriever and corpus, imagine that you can retrieve information given the Prefix-Intent.  
   c. Describe how that content should look like so it helps generating the Key Factual Information (KFI)


5. Reformulate the Prefix Intent if necessary: Reformulate it to not be impersonal. This means that if the subject it is not identified (e.g. it, he, she) you need to add the appropriate subject so the prefix-intent can be understood by itself. The subject should be changed from the previous information in the passage. Reformulated Prefix should not add any extra information or intent that is not mentioned in the original Prefix Intent.


6. Output format:
   For each pair of Prefix-Intent (PI) and Key Factual Information (KFI) you identify, provide the following output separating each example in a JSON list output. Ensure that it is actually a JSON.

   - Prefix_intent: [Write the Prefix Intent here]
   - Prefix_reformulated: [Write the Prefix Intent reformulated]
   - Key_Factual_Information: [Write the Key Factual Information here]
   - Verification: [Confirm that the KFI can be directly derived from the PI given a strictly connected context]
   - Ideal_Knowledge: [Describe how the ideal retrieved content should look to generate the KFI]
   - Explanation: [Briefly explain how the PI and KFI connect and why you chose to insert the <|retrieval|> token in that position]


7. Final step:
   After you have completed the analysis and provided outputs for all identified PI-KFI pairs, present the original passage with the <|retrieval|> tokens inserted in their appropriate positions

Here's an example of the expected output format:

Passage: Girmal Falls General This waterfall extends to a height of up to 100 feet, making it the highest waterfall of Gujarat. The picturesque beauty of this site makes it popular among visitors and people of the region alike. The water swiftly falls from a great height, creating a fog like condition that’s eye catching. The government of this state is working on many projects to make this place an ideal picnic spot and a tourist attraction. The fall comes to its best form at the time of monsoon and provides an immensely striking appearance. Some of the best natural features of Gujarat can be explored in this place. This place is a nice and refreshing retreat for any traveler.

```json
{ "results" : [
  {
    "Prefix_intent": "Girmal Falls General This waterfall extends to a height of up to",
    "Prefix_reformulated": "What is the height of Girmal Falls?",
    "Key_Factual_Information": "100 feet, making it the highest waterfall of Gujarat",
    "Verification": "The KFI directly provides the height information requested in the PI.",
    "Ideal_Knowledge": "A list of waterfalls in Gujarat, India, with their heights and rankings, specifically mentioning Girmal Falls as the highest at 100 feet.",
    "Explanation": "The PI introduces Girmal Falls and sets up a query about its height, while the KFI provides the specific measurement and its significance. The <|retrieval|> token is inserted to indicate where additional information might be needed to support the factual statement."
  },
  {
    "Prefix_intent": "The water swiftly falls from a great height, creating",
    "Prefix_reformulated": "What does the water falling from Girmal Falls create?",
    "Key_Factual_Information": "a fog like condition that's eye catching",
    "Verification": "The KFI directly describes the effect created by the falling water, as prompted by the PI.",
    "Ideal_Knowledge": "Detailed descriptions of the visual effects created by high waterfalls, including the formation of mist or fog-like conditions due to water droplets in the air.",
    "Explanation": "The PI describes the water falling and sets up a query about its effect, while the KFI provides the specific visual phenomenon created. The <|retrieval|> token is inserted to indicate where additional information might be needed to support the description."
  },
  {
    "Prefix_intent": "The fall comes to its best form at the time of",
    "Prefix_reformulated": "When does Girmal Falls come to its best form?",
    "Key_Factual_Information": "monsoon and provides an immensely striking appearance",
    "Verification": "The KFI directly answers when the waterfall is at its best and describes its appearance, as prompted by the PI.",
    "Ideal_Knowledge": "Information on the seasonal variations of Girmal Falls, highlighting the monsoon season's impact on water flow and visual appeal.",
    "Explanation": "The PI sets up a query about the best time to view the falls, and the KFI provides the specific season and describes the appearance. The <|retrieval|> token is inserted to indicate where additional information about seasonal changes might be needed."
  }],
"Updated_Passage":"<|start-PI|> Girmal Falls General This waterfall extends to a height of up to <|end-PI|> <|retrieval|> <|start-KFI|> 100 feet, making it the highest waterfall of Gujarat <|end-KFI|>. The picturesque beauty of this site makes it popular among visitors and people of the region alike. <|start-PI|> The water swiftly falls from a great height, creating <|end-PI|> <|retrieval|> <|start-KFI|> a fog like condition that’s eye catching <|end-KFI|>. The government of this state is working on many projects to make this place an ideal picnic spot and a tourist attraction. <|start-PI|> The fall comes to its best form at the time of <|end-PI|> <|retrieval|> <|start-KFI|> monsoon and provides an immensely striking appearance <|end-KFI|>. Some of the best natural features of Gujarat can be explored in this place. This place is a nice and refreshing retreat for any traveler."
}

```
8. Final check:
  a. Review the Updated_Passage to ensure all PIs and KFIs are properly tagged.
  b. Verify that the first PI in the passage starts with <|start-PI|>.
  c. Make sure there are no missing or misplaced tags.
 
Remember to analyze the entire passage, identify all relevant PI-KFI pairs, and provide the output for each pair as specified. After completing the analysis, present the original passage with the <|retrieval|> tokens inserted in their appropriate positions as part of a new key in the JSON file. Only Ouput the JSON File.