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>
Soviet government in the Kronstadt rebellion in 1921, but were defeated, and the Fleet de facto ceased to exist as an active military unit. 1922–41 The Fleet, renamed the Red-Banner Baltic Fleet on 11 January 1935, was developed further during the Soviet years, initially relying on tsarist warships, but adding modern units built in Soviet yards from the 1930s onwards. Among the Fleet's Soviet commanders were Gordey Levchenko in 1938–39 and Arseniy Golovko in 1952–56. Ships and submarines commissioned to the fleet included Soviet submarine M-256, a Project 615 short-range attack diesel submarine of the Soviet Navy. The fleet also acquired a large number of ground-based aircraft to form a strong naval aviation force. In September 1939, the fleet threatened the Baltic states as part of a series of military actions staged to encourage the Baltics to accept Soviet offers of "mutual assistance." Subsequently, in June 1940, the fleet blockaded the Baltics in support of the Soviet invasion. Winter War Finland, which had refused to sign a "pact of mutual assistance", was attacked by the USSR. The fleet played a limited role in the Winter War with Finland in 1939–1940, mostly through conducting artillery bombardments of Finnish coastal fortifications. Many fleet aircraft were involved in operations against Finland, however. Its operations came to a close with the freezing of the Gulf of Finland during the exceptionally cold winter of that year. World War II In the beginning of the German invasion the Baltic Fleet had 2 battleships, 2 cruisers, 2 flotilla leaders, 19 destroyers, 48 MTBs, 65 submarines and other ships, and 656 aircraft. During the war the Fleet, commanded by the Vice-Admiral Vladimir Tributz, defended the Hanko Peninsula, Tallinn, several islands in Estonian SSR, and participated in the breakthrough breach of the Siege of Leningrad. 137 sailors of the Baltic Fleet were awarded a title of the Hero of the Soviet Union. For most of the war the fleet was trapped by German and Finnish minefields in Leningrad and nearby Kronstadt, the only bases left in Soviet hands on the Baltic coast. Another key factor was that the Finns had recaptured outer islands of the Gulf of Finland, Suursaari being the most important of them. Many of the fleet sailors fought on land as infantry during the siege. Only submarines could risk the passage into the open sea to strike at German shipping. They were particularly successful towards the end of the war, sinking ships like Wilhelm Gustloff, Steuben and Goya, causing great loss of life. The Fleet carried out the Soviet evacuation of Tallinn in late August 1941. Grouping in June 1941 Battleship squadron battleship Marat (named after Jean-Paul Marat) battleship Oktyabrskaya Revolutsiya (named after October revolution) destroyer leader Leningrad (named after the city of Leningrad) destroyer leader Minsk (named after the capital of Belarus) 1st destroyer division/1 Flotilla cruiser Kirov destroyer Gnevny destroyer Gordyy destroyer Grozyashchiy destroyer Smetlivyi destroyer Steregushchy 2nd destroyer division/2 Flotilla Serdity Silnyi Stoikiy Storozhevoy 3rd destroyer division/3 Flotilla Karl Marx Volodarsky Lenin Yakov Sverdlov Artiom Engels Kalinin Guard division/Naval Guards Squadron Burya Sneg Taifun Tsiklon Tucha Vihr Minesweeper Task Group Minelayer Marti Minesweepers T-201, T-202, T-203, T-204, T-205, T-206, T-207, T-208, T-209, T-210, T-211, T-212, T-213, T-214, T-215, T-216, T-217 and T-218 15 auxiliary minesweepers 1st submarine brigade/1 Submarine Battle Fleet S-1, S-3, S-4, S-5, S-6, S-7, S-8, S-9, S-10, S-101, S-102, L3, M-71, M-77, M-78, M-79, M-80, M-81, M-83, ex-Estonian submarine Lembit, ex-Estonian submarine Kalev, ex-, ex- 2nd submarine brigade/2 Submarine Battle Fleet Shch-309, Shch-310, Shch-311, Shch-317, Shch-318, Shch-319, Shch-320, Shch-322, Shch-323, Shch-324, M-90, M-94, M-95, M-96, M-97, M-98, M-99, M-102, M-103
</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.