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>
"Be a Clown." Cast Judy Garland as Manuela Gene Kelly as Serafin Walter Slezak as Don Pedro Vargas, a.k.a. Mack "the Black" Macoco Gladys Cooper as Aunt Inez Reginald Owen as The Advocate George Zucco as The Viceroy Specialty dance sequence by The Nicholas Brothers Lester Allen as Uncle Capucho Lola Albright as Isabella Ellen Ross as Mercedes Mary Jo Ellis as Lizarda Jean Dean as Casilda Marion Murray as Eloise Ben Lessy as Gumbo Jerry Bergen as Bolo Production Vincente Minnelli directed, from a screenplay by Frances Goodrich from the 1942 play by S. N. Behrman, which had starred Alfred Lunt and Lynn Fontanne. The script underwent several rewrites. Originally, there was intended to be a character for Lena Horne, who would have played Manuela's dressmaker and sang "Love of My Life", but her character was eventually dropped. The background score was by Lennie Hayton. The songs were by Cole Porter. The dance sequence was omitted when shown in some cities in the South, such as Memphis, because it featured The Nicholas Brothers dancing with Kelly. (It was the first time they had danced onscreen with a white performer, and while it was Kelly's insistence that they perform with him, they were the ones who were punished. Essentially blackballed, they moved to Europe and did not return until the mid-60s.) Several songs were cut, changing the lineup of the score. "Mack the Black" was intended to be the opening number. For the hypnosis scene, Garland and Kelly would have done a different dance to a song titled "Voodoo". The sequence was filmed, but MGM executives felt its choreography was too openly sexual for audiences to accept. When MGM head Louis B. Mayer saw it he was so outraged he ordered the negatives to be burned. No known footage of it is known to exist today. "Mack the Black" was used for the scene instead. The score was nominated for an Academy Award for Original Music Score, losing out to another MGM musical, Easter Parade, also starring Garland and produced by Arthur Freed. The production of the film was frequently tense: Garland's qualms about the production and her struggles with ongoing prescription drug addiction led to several angry confrontations with husband/director Minnelli, presaging their divorce a few years later. The production lasted for over four months, with Garland off set for 99 of the 135 shooting days. The film was shot in Technicolor. Reception Audiences failed to respond to the film's high-brow ambitions, and while many critics hailed its sophistication, box office results failed to follow suit, although the British author David Shipman, in his book The Great Movie Stars: The Golden Years, described it as being overall "a neat moneymaker, but otherwise probably the least successful of Garland's MGM films." According to MGM accounts, the film earned $1,874,000 in the US and Canada and $782,000 elsewhere, resulting in a loss to the studio of $2,290,000. Soundtrack for extended CD version "Main Title (Mack the Black)" "Niña" "Mack the Black" "Love of My Life" (Outtake) "Pirate Ballet" "You Can Do No Wrong" "Be a Clown" "Love of My Life" (Reprise) "Be a Clown" (Finale) "Mack the Black" (Unused Version) "Papayas / Seraphin's March" (Partial Demo) "Voodoo (Outtake)" "Manuela (Demo)" "Voodoo (Demo)" "Niña (Demo)" "You Can Do No Wrong" (Demo) "Be a Clown" (Demo) Judy Garland Interview with Dick Simmons Gene Kelly Interview with Dick Simmons References External links The Judy Garland Online Discography "The Pirate" pages. The Cinematic Voyage of The Pirate: Kelly, Garland, and Minnelli at Work (A book with the complete background, production history, and legacy of this
</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.