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>
to use the single since creating the demo. She wrote the lyrics after watching previous seasons of Ōoku, and was inspired by its depiction of women. For the B-side "Koi wa Maboroshi (Get It Up for Love)", Sheena asked Ukigumo to perform the guitar in the style of Southern All Stars' 1983 song "Sonna Hiroshi ni Damasare". The remaining B-side, "Rakujtsu", dealt with more personal themes than "Shuraba". It was meant to be the final song on Adult, however Sheena felt that Izawa's composition "Tegami" suited it much better, after getting used to his style. The original demo was guitar-backed, however the band felt that Izawa's piano accompaniment suited the song better. A different version of the song appears on the album, entitled "Shuraba (Adult Ver.)", featuring a different arrangement. Promotion and release As the theme song of Ōoku: Hana no Ran, "Shuraba" was played during the drama's credits, as well as during promotional commercials for the drama. Tokyo Jihen performed the song at Music Station twice. First on November 4, 2005, and the second time on December 23, 2005 for their Christmas special broadcast. The band also performed the song on Count Down TV on November 12, and made extensive appearances on radio shows between October 26 and November 14. The song was performed during the band's Domestic! Virgin Line (2006), Domestic! Just Can't Help It. (2006), Spa & Treatment (2007), Ultra C (2010) and Bon Voyage (2012) tours. It was also performed at the Dai Ikkai Ringohan Taikai events in December 2005, however not released on the DVD. The B-sides were both performed during the 2005 Ringo-han events, with "Rakujitsu" being the only Tokyo Jihen performance featured on the DVD. Both songs were performed during Domestic! Virgin Line, with "Rakujitsu" also performed at Domestic! Just Can't Help It.. Music video A music video was first unveiled on October 12, 2005, and was directed by Shuichi Banba. The video features the band performing the song in an entirely white set, with all the band members wearing exclusively white clothing. During the video, red droplets begin to stain the white set. The final scene features a high-heeled shoe filling up with red. The video was nominated for the Best Group Video award at the 2006 MTV Video Music Awards Japan, however lost to reggae group Def Tech's "Konomama". In March 2006, a video was released for the song's B-side "Koi wa Maboroshi (Get It Up for Love)", much like how videos were created for past singles' B-sides. This was an edited version of the song entitled "Koi wa Maboroshi for Musician". Critical reception Listenmusic reviewer Yoshiki Aoyuki called the song a masterpiece, praising the "varied rhythm changing into a fat hip-hop beat" caused by the mix of processed and live drums, Kameda's bass-work, and the "stylish keyboards and classical guitar". He felt the new members acted like a "chemical reaction" on the band's music. CDJournal reviewers called it "a funky pop song that fully realises [Sheena's] unwavering nature as a melody maker". They felt the version that appeared on Adult was more refined than the "hard" rock flavour of the single version. They praised the "solid rhythm and eccentric guitar". Track listing Personnel Personnel details were sourced from "Shuraba"'s liner notes booklet. Visuals and imagery Central67 – advertisements, design Daisuke Iga – styling Shinji Konishi – hair, make-up Ryoji Otani – hair, make-up Shoji Uchida – photography Tokyo Jihen Toshiki Hata – drums Ichiyo Izawa – keyboards Seiji Kameda – bass Ringo Sheena – vocals Ukigumo – guitar Technical, production and other performers Tomonobu Akiba – assistant engineer Kunihiro Imazeki
</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.