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>
solo oboe, duration 14 minutes. Written for oboist Marlen Vavřikovà for performance at the Ostrava Oboe Festival, 2009. Premiered May 2009 Ostrava University, Czech Republic. Pears on a Sill (2007) for solo piano, dur. 13 min. in 4 movements: 3 a.m. Nightingale; Spinning Waltz; Boatman’s Song; Caitlyn’s Goodbye. dedicated to Anne Modugno and written for pianist Solungga Liu Premiered April 2009 National Concert Hall Taipei, Taiwan. A Seeker’s Song (2006) for solo guitar, duration 9 minutes. Commissioned by Kenneth Meyer with partial funding from the Hanson Institute. Premiered November 8, 2006 by Kenneth Meyer, Syracuse University, Syracuse, NY. À l’écoute (2005) for 2 oboes and harpsichord, dur. 15 min. Commissioned for the Ostrava Oboe Festival, Ostrava, Czech Republic. Premiered November 25, 2005 by Marlen Vavrikova and Richard Killmer, Ostrava University. Madra’s Musings (2005) for flute, viola and harp. dur. 10 min. Written for janus. Premiered January 31, 2007 by janus, Weill Recital Hall, Carnegie Hall, New York City. Fanfare to an Open Sky (2003) for 3 trumpets, 4 horns, 2 trombones, tuba and timpani, dur. 3 min. Premiered November 2003, Central College, Iowa. Aria (2003) for oboe, violin, viola and cello, dur. 11 min. Commissioned by Alice Caplow-Sparks. Premiered April 12, 2003, Eastman School of Music. Love, Play On (2002) for wind ensemble, duration 24 min. Commissioned by the Big Ten University Wind Ensembles. Premiered April 25, 2003, Northwestern University. Pandora’s Beethoven-Box (2001) for orchestra, dur. 10 min. Commissioned by the Phoenix Symphony for its 2002 Beethoven Festival Premiered January 31, 2002 in Symphony Hall, Phoenix, AZ. The Phoenix Symphony, Hermann Michael, conductor. for inspiration hath no society with reason (2001) for woodwind quintet, dur. 6 min. Commissioned by the Chamber Music Festival of the East. Premiered August 11, 2001 at Bennington College, Bennington, VT. Lover Calls (2001) for seven cellos (also transcribed for six cellos and bass), dur. 7 min. Commissioned by the Tarab Cello Ensemble. Premiered May 12, 2001 at the Merryall Center for the Arts, New Milford, CT. Evocations of an Earthly Nature (2000) for orchestra, dur. 15 min. Commissioned by ASCAP and the Rhode Island Philharmonic in honor of the Aaron Copland Centenary. Premiered June 16, 2000 in Jordan Hall, New England Conservatory, Boston. Rhode Island Philharmonic, Larry Rachleff, conductor. Afterglow of a Kiss (2000) for solo flute and large chamber ensemble, dur. 7 min. Premiered February 29, 2000 in Kilbourn Hall, Eastman School of Music: Composers’ Sinfonietta, Alyce Johnson, flute, David Gilbert, conductor. Recitative to an Absent Sky (1999) for solo cello, dur. 6 min. Premiered February 4, 2000 in Kilbourn Hall, Eastman School of Music: Florent Renard-Payen, cello. A Spell of Myriad Dances (1999) for orchestra, dur. 15 min. Paul Jacobs Memorial Fund Commission by the Tanglewood Music Center. Premiered July 26, 1999 during the Contemporary Music Festival, Ozawa Hall. Tanglewood Music Center Orchestra, Stefan Asbury, conductor. Trio & Consort (1999) for English horn, seven oboes and percussion, dur. 13 min. Commissioned by Richard Killmer. Premiered August 12, 1999 at the International Double Reed Society Conference, Madison, WI. Richard Killmer, Anna Hendrickson, Andrea Gross, and Eastman oboe choir. Sculpted Memory (1998) for chamber orchestra, dur. 10 min. Commissioned by the Fairbanks Symphony. Premiered January 30, 1999 in Davis Hall, University of Alaska at Fairbanks. Arctic Chamber Orchestra, Madeline Schatz, conductor. Quatre Aperçus (1998) for mezzo-soprano, clarinet and piano, dur. 13 min. Premiered February 4, 1999 in Kilbourn Hall, Eastman School of Music. Kirsten Sollek-Avella, Anthony Franco, David Riley. Empress (1998) for large chamber ensemble, dur. 12 min. Premiered July 19, 1998 in Ozawa Hall, Tanglewood, MA. Tanglewood Fellows, Stefan Asbury, conductor. Spiralcycle (1998) for
</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.