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>
Travis Wall Performances: Top 12 Perform (July 13, 2011) Judges: Nigel Lythgoe, Mary Murphy, Jesse Tyler Ferguson, Sonya Tayeh Performances: Top 10 Perform (July 20, 2011) Judges: Nigel Lythgoe, Mary Murphy, Neil Patrick Harris Performances: Solos: Top 8 Perform (July 27, 2011) Judges: Lady Gaga, Nigel Lythgoe, Mary Murphy, Rob Marshall Performances: Top 6 Perform (August 3, 2011) Judges: Nigel Lythgoe, Mary Murphy, Lil' C, Christina Applegate Performances: Solos: Top 4 Perform (August 10, 2011) Judges: Nigel Lythgoe, Mary Murphy, Katie Holmes, Kenny Ortega Performances: Solos: Result shows Results show musical performances Week 1 (June 16, 2011) Group dance: Top 20: "XR2"—M.I.A. (Jazz; Choreographer: Sonya Tayeh) Guest dancers: (Gopak; ) Bottom 3's solos: Eliminated: No one was eliminated. New partners: None. Starting with the next four weeks, no one will get a new partner until Top 10. Week 2 (June 23, 2011) Group dance: "Sinnerman"—Nina Simone (Hip-hop; Choreographer: Dave Scott) Guest dancers: Quest Crew Bottom 3's solos: NOTE: Four contestants were eliminated because no one was voted off in Week 1. Week 3 (June 30, 2011) Group dance: "The Incredits" from The Incredibles (Jazz; Choreographer: Michael Rooney) Guest dancers: AXIS Dance Company ("Partita for Violin No. 2 in D Minor, BWV 1004: V. Ciaccona"—Janine Jansen; Contemporary; Choreographer: Alex Ketley) Eric Luna and Georgia Ambarian ("Calypso" from Pirates of the Caribbean: At World's End; Ballroom) Bottom 3's solos: Week 4 (July 7, 2011) Group dance: "Kata Kata" from Raavan (Bollywood; Choreographer: Nakul Dev Mahajan) Guest dancers: Cedar Lake Contemporary Ballet ("Ends"—Mikael Karlsson) Bottom 3's solos: Week 5 (July 14, 2011) Group dance: "El Fuego" by Sean Peter feat. Oscar Jimenez (Flamenco-Jazz; Choreographer: Kelley Abbey) Guest dancers: Jason Samuels Smith & Anybody Can Get It - "Move The Crowd (Sole Sessions Pt. 1)" Bottom 3's solos: Note: Now it's up to Top 10, they'll be voted individually by America. Also, new partners randomly picked whether they get a male or female and an All-Star pool. Week 6 (July 21, 2011) Group dance: "Act One: On Broadway" from Smokey Joe's Cafe (Broadway; Choreographer: Josh Bergasse) Guest dancers: Daniil Simkni from The American Ballet Theater ("Les Bourgeois"—Jacques Brel; Ballet) Bottom 4's solos: Week 7 (July 28, 2011) Group dance: "The Circus Sets Up" from Water for Elephants (Contemporary; Choreographer: Tyce Diorio) Guest dancers: The Legion of Extraordinary Dancers ("Bernini's Angels"—Kerry Muzzey; Choreographers:Christopher Scott and Galen Hooks) Bottom 4's solos: Week 8 (August 4, 2011) Group dance: "Grown Unknown"—Lia Ices (Contemporary; Choreographer: Justin Giles) Guest dancers: Kent Boyd and Lauren Froderman: "Collide"—Howie Day (Contemporary; Choreographer: Travis Wall) Bad Boys of Dance: "Derezzed" from Tron: Legacy (Choreographer: Rasta Thomas) Top 6's solos: Week 9 (Finale) (August 11, 2011) Judges: Nigel Lythgoe, Mary Murphy, Jesse Tyler Ferguson, Sonya Tayeh, Tyce Diorio, Robin Antin, Lil' C Group dances: Matt Flint is the winner of So You Think You Can Dance UKs second season, and this performance comprised a portion of his prize package. Judges' picks All-Stars Dance Pool As opposed to last season, there is no set group of All-Star dancers. Rather, All-Stars will be changing weekly based on availability. On the July 14, 2011 results show, Lythgoe announced that Season 7 contestant Alex Wong—forced to withdraw after tearing an Achilles tendon—was asked to be an All-Star for Top 10 week, but that Wong tore his other Achilles tendon at an audition the Saturday prior and thus would not be able to participate. This dancer was eliminated this week. This dancer was in the bottom 4 this week. This All-Star did not perform this week. This dancer placed second in the competition. This dancer won the competition. All-Stars
</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.