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>
produced. During a period in which little was known about iron-deficiency anemia, how often it occurred or the principles of iron metabolism, Finch made significant findings in his research at the University of Washington throughout his 60-year tenure using radioisotopes to measure the body's production of red cells and their life span. He was able to discover how iron is incorporated in hemoglobin, and was able to aid doctors in expanding their abilities from simply detecting iron-deficiency anemia to detecting different types of anemia in an increasingly accurate manner. Finch has published Scientific Journal articles specifically pertaining to Erythropoiesis and anemia such as Erythropoiesisin Pernicious Anemia (1953), Treatment of Iron Deficiency Anemia in the Adult (1957), The Diagnosing of Iron deficiency Anemia (1964), Pathophysiologic Aspects of Sickle Cell Anemia (1972), and Erythroid Marrow Function in Anemic Patients (1987). Additional articles included: The Effect of Erythroid Hyperplasia on iron balance (1988), and Intact Transferrin Receptors in Human Plasma and Their Relation to Erythropoisis in blood (1990). Transferrin, a blood plasma protein for iron ion delivery, was additionally a huge topic for Finch in the 1980s as seen in his publications from that time period. He researched and published studies on transferrin in the blood such as intact transferrin receptors in human plasma, human deferric transferrin's interaction with reticulocytes, the uptake and release of iron in human transferrin, rat transferrin and gene expression, the iron binding sites of human transferrin, its saturation, and clinical implications. Other studies conducted by Finch showed how iron is used in the blood to manufacture hemoglobin. He additionally showed that hemochromatosis which causes the body to absorb too much iron from food consumption could be treated through periodic bleeding. Also he was able to describe how during menstruation when significant bleeding occurs depleting iron stores, the body tries to maintain adequate stores, but did recommend that most women take supplements to prevent them from suffering signs of iron deficiency such as fatigue. He can also be acclaimed for dedicating his time and resources towards extending the life of blood stored to transfuse injured soldiers, work inspired by his desire to help serve his country in his own way, after being unable to serve in the military, due to being previously deemed as unfit due to pneumonia. Research in the early 1960s by Finch showed that most women were not getting enough iron in their diet and suggested that supplements be taken by women to avoid problems such as fatigue caused by iron deficiency. Publications 7th ed, F.A. Davis, 1996, . Body iron excretion in man: A collaborative study The American Journal of Medicine, Volume 45, Issue 3, September 1968, Pages 336-353 Ralph Green, Robert Charlton, Harold Seftel, Thomas Bothwell, Fatima Mayet, Barry Adams, Clement Finch, Miguel Layrisse Evaluation of storage iron by chelates The American Journal of Medicine, Volume 45, Issue 1, July 1968, Pages 105-115 Laurence A. Harker, Donald D. Funk, Clement A. Finch Iron stores in man The American Journal of Medicine, Volume 11, Issue 5, November 1951, Page 629 Alexander R. Stevens Jr., Clement A. Finch Iron storage disease Journal of Chronic Diseases, Volume 2, Issue 2, August 1955, Pages 232-233 Clement A. Finch Clinical syndrome of potassium intoxication The American Journal of Medicine, Volume 1, Issue 4, October 1946, Pages 337-352 Clement A. Finch, C.Glenn Sawyer, John M. Flynn Pathophysiologic aspects of sickle cell anemia The American Journal of Medicine, Volume 53, Issue 1, July 1972, Pages 1-6 Clement A. Finch Effects of iron status on δ-aminolevulinic acid dehydratase activity Biochemical Medicine, Volume 18, Issue 3, December 1977, Pages 323-329 Robert F. Labbé,
</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.