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>
Army of Lovers – Master Series 1997 Big Country – Master Series 1997 Burt Bacharach – Master Series 1996 Bananarama – Master Series 1997 Berlin – Master Series 1998 Maria Bill – Master Series 1996 Black – Master Series Elkie Brooks – Master Series 1996 Sam Brown – Master Series 1996 Jimmy Somerville – Master Series (reissue) 1997 Camel – Master Series 1998 Peter Cornelius – Master Series 1996 Dexys Midnight Runners – Master Series Yvonne Elliman – Master Series 1998 Rainhard Fendrich – Master Series Bill Haley – Master Series 1998 Ludwig Hirsch – Master Series 1997 Joe Jackson – Master Series 1997 The Jam – Master Series 1996 Tom Jones – Master Series 1996 Level 42 – Master Series 1997 Liza Minnelli – Master Series 1998 The Moody Blues – Master Series Nana Mouskouri – Master Series (reissue) 1996 The Neville Brothers – Master Series Iggy Pop – Master Series Demis Roussos – Master Series (reissue) The Rubettes – Master Series Scorpions – Master Series The Small Faces – Master Series 1998 Squeeze – Master Series STS – Master Series Donna Summer – Master Series 1998 Visage – Master Series 1998 Waterloo & Robinson – Master Series Bruce Willis – Master Series 1998 Georg Danzer - Master Series 1998 Kurt Ostbahn - Master Series 1998 Stefanie Werger - Master Series 1998 Arik Brauer - Master Series 1998 series 1998 ABBA – Master Series (reissue) Graeme Allwright – Master Series Ange – Master Serie Daniel Balavoine – Master Serie (reissue) Bananarama – Master Series (reissue) Visage – Master Series Barbara – Master Serie (reissue) 1999 Barclay James Harvest – Master Series Brigitte Bardot – Master Serie The Barron Knights – Master Series Acker Bilk – Master Series Jane Birkin – Master Serie (reissue) Georges Brassens – Master Serie Jacques Brel – Master Serie (reissue) Roy Buchanan – Master Series 1999 Kim Carnes – Master Series Mirek Černý – Master Serie 1998 Dio – Master Series Jean Ferrat – Master Serie (reissue) Serge Gainsbourg – Master Serie (reissue) France Gall – Master Serie Godley & Creme – Master Series Johnny Hallyday – Master Serie (reissue) Engelbert Humperdinck – Master Series 1999 Joe Jackson – Master Series (reissue) 1998 Tom Jones – Master Series (reissue) Kool & the Gang – Master Serie Jean-Luc Lahaye – Master Serie (reissue) Bernard Lavilliers – Master Serie Enrico Macias – Master Serie The Mamas & the Papas – Master Series Guy Marchand – Master Serie (reissue) Melina Mercouri – Master Serie (reissue) 1998 John Miles – Master Series Eddy Mitchell – Master Serie Jeanne Moreau – Master Serie Nana Mouskouri – Master Series (reissue) Georges Moustaki – Master Serie Nicoletta – Master Serie Robert Palmer – Master Series Edith Piaf – Master Serie (reissue) Pink Fairies – Master Series The Platters – Master Series Cozy Powell – Master Series Renaud – Master Serie Serge Reggiani – Master Serie (reissue) Nicole Rieu – Master Serie (reissue) The Righteous Brothers – Master Series Demis Roussos – Master Serie (reissue) The Sensational Alex Harvey Band – Master Series The Shadows – Master Series Mort Shuman – Master Serie 1998 Status Quo – Master Series Alan Stivell – Master Serie (reissue) 1998 The Style Council – Master Series Taxmeni – Master Series 1998 Thin Lizzy – Master Series Hervé Vilard – Master Serie 1998 Rick Wakeman – Master Series Roger Whittaker – Master Series Millennium Edition reissues Wolfgang Ambros – Millennium Edition 2000 Joan Armatrading – Millennium Edition Burt Bacharach – Millennium Edition Black – Millennium Edition Elkie Brooks - Millennium Edition Ludwig Hirsch – Millennium Edition John Miles
</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.