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>
Ivan Drach Ivan Fedorovych Drach (, 17 October 1936 – 19 June 2018) was a Ukrainian poet, screenwriter, literary critic, politician, and political activist. Drach played an important role in the founding of Rukh – the People's Movement of Ukraine – and led the organisation from 1989 to 1992. Biography After finishing secondary school Ivan Drach did military service, after which from 1959 – 1963 he studied at the language and literature faculty of Kyiv University. At this time Drach visited popular in Kyiv the "Klub tvorchoyi molodi" ["Club for Creative Young People" (CCY)]. Drach took part in literary evenings where innovative poems were read. The creative way started in the period of Khrushchev thaw. He made his debut in 1961, when his poem-tragedy "Knife in the Sun" was published in the Kyiv literary newspaper. Ivan Drach worked in the newspapers "Literary Ukraine" and "Fatherland", as well as in the film studio O. P. Dovzhenko. After the start of Perestroika resumed contacts in dissident circles.Together with Vyacheslav Chornovil, Mykhailo Horyn and a number of other Ukrainian activists Ivan Drach created in 1989, the People's Movement of Ukraine, first official Ukrainian pro-reform organization. Ivan Drach was the first chairman of Rukh - September 8, 1989 to February 28, 1992. From February 28 to December 4, 1992, he was co-chairman of the NRU with Vyacheslav Chornovil and Mykhailo Horyn. In the spring of 1990, Ivan Drach was elected to the Verkhovna Rada from Artemivsk (№ 259) constituency. For it voted 66.38% of voters. After retiring from his high office in the NRU in late 1992, Ivan Drach finally retired from politics in 1994. Drach has promoted the use of the Ukrainian language in Ukraine and whilst serving as the Ukraine's minister of communication proposed wide-ranging measures including setting quotas for Ukrainian-language broadcasts and tax breaks for Ukrainian publishing. At the last 29 March 1998 elections to the Verkhovna Rada member Ivan Drach NRU ran for parliament from Ternopil (№ 167) constituency and voting results (21.04% of the vote), the second time he was elected to Parliament. In the parliamentary elections of March 2002 Ivan Drach appeared in the Our Ukraine party at number 31. Thus, the third time he became a deputy. After a long dispute with the party leadership NRU Ivan Drach in March 2005 left the party and joined the Ukrainian People's Party Yuri Kostenko. In the parliamentary elections of March 26, 2006, he was number 14 on the electoral list "Ukrainian National Bloc of Kostenko and the Ivy". But the bloc lost the election, and Ivan Drach was not elected to Parliament. From August 1992 to May 19, 2000 Ivan Drach was the head of the Ukrainian World Coordinating Council. Drach's other positions have included the chairmanship of the Ukrainian Intelligentsia Congress and heading the Writers' Union. In 2006 Drach was awarded the title Hero of Ukraine. Ivan Drach died 19 June 2018 in Feofania Hospital, Kiev after a serious illness. Drach has requested to be buried next to the grave of his son Maksym in his native village of Telizhyntsi. Awards Antonovych prize (1991) Poetry collections Soniashnyk (The Sunflower, 1962) Protuberantsi sertsia (Protuberances of the Heart, 1965) Poeziï (Poems, 1967) Balady budniv (Everyday Ballads, 1967) Do dzherel (To the Sources, 1972) Korin' i krona (The Root and the Crown, 1974) Kyïvs'ke nebo (The Kyivan Sky, 1976) Duma pro vchytelia (Duma about the Teacher, 1977) Soniashnyi feniks (The Solar Phoenix, 1978) Sontse i slovo (The Sun and the Word, 1979) Amerykans'kyi zoshyt (American Notebook, 1980) Shablia i khustyna (The Saber and the Kerchief, 1981) Dramatychni poemy (Dramatic Poems, 1982)
</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.