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>
Nosson Tzvi Finkel (Mir) Nosson Tzvi Finkel (12 March 1943 – 8 November 2011) was an American-born Haredi Litvish rabbi and rosh yeshiva (dean) of the Mir Yeshiva in Jerusalem, Israel. During his tenure from 1990 until his death in 2011, the Mir Yeshiva grew into the largest yeshiva in Israel with nearly 6,000 undergraduate students and over 1,600 avreichim (married students). According to one estimate, he taught 25,000 students over his lifetime. Although he suffered from Parkinson's disease for the last 28 years of his life, experiencing involuntary spasms and slurred speech, he did not let his illness stop him from learning Torah for long hours, delivering regular shiurim (lectures), and fund-raising for his yeshiva around the world. He raised an estimated US$500 million for the Mir during his tenure as rosh yeshiva. He was a member of the Moetzes Gedolei HaTorah of Degel HaTorah. He was known for his Torah erudition and his warmth and concern for his students. Early life Nosson Tzvi Finkel was born in Chicago, Illinois to Rabbi Eliyahu Meir Finkel and his wife, Sara Rosenblum, who ran a kosher catering business. His paternal grandfather, Rabbi Avraham Shmuel Finkel, was a mashgiach ruchani at the Hebron yeshiva in Israel, and his paternal great-grandfather was the Alter of Slabodka, Rabbi Nosson Tzvi Finkel, after whom he was named. He had one brother, Gedaliah, who now teaches at the Mir yeshiva. After his parents immigrated to Israel in 1973, his mother published a best-selling kosher cookbook. Reb Finkel grew up as a "typical American Jewish boy" who enjoyed playing basketball and baseball. He was known as Nathan in school and Natie to his friends. He was one of the first students of the Central Park Hebrew Day School (later renamed Arie Crown Day School) and received after-school tutoring in Torah studies from Rabbi Yehoshua Levinson. In 1957, at the age of 14, he accompanied his parents on a trip to Israel to visit the holy sites and his father's family. His great-uncle, Rabbi Eliezer Yehuda Finkel ("Reb Leizer Yudel"), the Mir rosh yeshiva, recognized his ability to think clearly and have patience for studying, and asked his parents to let him stay and study in his yeshiva. Finkel remained at the Mir for eight months, studying with top-notch chavrutas (study partners) to develop his skills. He returned to Chicago to take his secondary education at the co-ed, Modern Orthodox Ida Crown Jewish Academy, where he was president of the student council and a starting centerfielder for the baseball team. At the age of 17, Finkel returned to Jerusalem to learn at the Mir under the guidance of his great-uncle. He learned diligently for the next six years. With one of his chavrutas, Rabbi Zundel Kroizer, he completed the entire Talmud each year. In the summer of 1964 Finkel married Reb Leizer Yudel's granddaughter, Leah, his second cousin and the eldest daughter of Rabbi Binyomin Beinush Finkel, who was his father's first cousin. He and his wife had 11 children. He continued to learn with chavrutas at all hours, stopping at 2 a.m.; his wife would bring their children to visit him at the yeshiva so he wouldn't have to take the time to walk home. He also began delivering shiurim in the yeshiva, which was headed by his father-in-law after the death of Reb Leizer Yudel in 1965. Upon the death of his father-in-law on 13 February 1990, Finkel was named rosh yeshiva of the Mir together with Rabbi Refoel Shmuelevitz (son of former Mir rosh yeshiva Rabbi Chaim Leib Shmuelevitz). Finkel took on the financial responsibility
</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.