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>
Come (American band) Come is an American alternative rock band, formed in Boston by Thalia Zedek (vocals, guitar), Chris Brokaw (guitar, vocals), Arthur Johnson (drums), and Sean O'Brien (bass). Band history Come came into being after a mutual acquaintance invited Brokaw, O'Brien, and Johnson to play with him. Brokaw was playing drums with Codeine, Johnson had previously drummed for Athens, Georgia band Bar-B-Q Killers, and O'Brien had played with two other 1980s Athens bands, Kilkenny Cats and Fashion Battery. After playing one show together, Brokaw, O'Brien, and Johnson decided to split off into their own project and invited Thalia Zedek to join them. Zedek had played in the bands Uzi and Dangerous Birds and had met and befriended Brokaw in the mid-1980s. Her most recent band at the time, the post-no wave New York City band Live Skull, had disbanded in 1990 and Brokaw and Zedek had been talking about playing together. After a year of jamming together, Come released the 12-inch single "Car" on Sub Pop in 1991 – a seven-minute epic in the post-punk, blues-noir style of The Birthday Party, These Immortal Souls, and The Gun Club. According to Spin magazine, "Car" was "[a] two-song seven-inch that delivers all the satisfaction of, let's say, the definitive Hendrix box set." This release encapsulated what was to become Come's trademark style: thematically dark, emotionally intense, and lengthy songs marked by Zedek's distressed vocals, abrupt rhythms, and the tension-filled guitar interplay between Zedek and Brokaw, both extraordinarily accomplished guitarists. Even before the release of its first album, the band received much critical praise, with Spin magazine stating that "[t]he band is ferocious, bending a head-on adrenaline rush into a staggering blues crawl, churning noise-damage into aching melody, and letting it fall apart", adding that Come was "[n]ot just another band from Boston," but rather "poised on the brink of the big time." In 1992, Come released its debut album, 11:11, on Matador Records. 11:11 received acclaim from both the independent and established media, with David Browne, from Entertainment Weekly, characterizing it as "enthralling, like watching someone howl into a rainstorm." After the release of 11:11, Brokaw left Codeine, devoting himself full-time to Come. Already after the release of the debut album, Come received praise from Dinosaur Jr.'s lead singer J. Mascis, Hüsker Dü's Bob Mould, and Nirvana's frontman Kurt Cobain, among many others, with Indigo Girls' Amy Ray lauding Zedek's voice, describing it as an "old Marlene Dietrich film" and Math rock band Chavez's guitarist Matt Sweeney characterizing Come as 'mind-blowing and one of the best bands ever.' Likewise, New York City alternative rock band Cell guitarist Jerry DiRienzo has stated that "Come is more rock-rooted [than Zedek's previous projects]. Their writing is great; their music bridges the masculine and feminine," concluding that Come are his "favorite band." Come's second album, Don't Ask, Don't Tell, was released in 1994. Though somewhat calmer than its predecessor, it was equally as grave. Among the highlights of the album, and of the whole of the band's impressive song catalogue, are the two dark ballads, "Let's Get Lost" and "Arrive," each closing a side of the vinyl edition. Johnson and O'Brien left the band after Don't Ask, Don't Tell to pursue other careers. The following album, the short Near-Life Experience, was recorded with a number of different musicians, including drummer Mac McNeilly of the Jesus Lizard and Bundy K. Brown of Tortoise. In 1998, Come released the 66-minute tour de force Gently, Down The Stream, which took its cue from Near Life Experience, but featured a more fluent integrated soundscape and included the stand-out track
</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.