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>
Scrappy Carroll Kid Carsey Ed Cartwright Bob Caruthers Bob Casey Dan Casey Dennis Casey Doc Casey Tommy Casey Ed Cassian Ed Caskin John Cassidy Pete Cassidy John Cattanach James Cavanagh Ice Box Chamberlain Rome Chambers Frank Chance Frank Chapman Jack Chapman Jim Chatterton Jack Chesbro Bill Childers Cupid Childs Sam Childs Pearce Chiles Hi Church Bobby Clack Aaron Clapp John Clapp Denny Clare Bob Clark Ed Clark Spider Clark Willie Clark Win Clark Artie Clarke Boileryard Clarke Dad Clarke Harry Clarke Henry Clarke Josh Clarke Fred Clarke Dad Clarkson John Clarkson Fritz Clausen Fred Clement Jack Clements Elmer Cleveland Monk Cline Billy Clingman Jim Clinton Bill Clymer George Cobb Dick Cogan Ed Cogswell Tom Colcolough John Coleman - OF/P John Coleman - 1890 P Percy Coleman Walter Coleman Ed Colgan Harry Colliflower Bill Collins Chub Collins Dan Collins Hub Collins Jimmy Collins Bill Collver Charles Comiskey Fred Cone Ed Conley Bert Conn Frank Connaughton Peter Connell Terry Connell Red Connally Jim Connor Joe Connor John Connor Ned Connor Roger Connor Jerry Connors Joe Connors Theodore Conover Ben Conroy Bill Conway Dick Conway Jim Conway Pete Conway Dan Coogan Paul Cook Fred Cooke Duff Cooley William Coon Jimmy Cooney Joe Corbett Jack Corcoran John Corcoran Larry Corcoran Mike Corcoran Tommy Corcoran Fred Corey Phil Coridan Pop Corkhill Henry Cote Dan Cotter Tom Cotter Bill Coughlin Dennis Coughlin Ed Coughlin Roscoe Coughlin Bill Coyle Frank Cox Dick Cramer Ed Crane Fred Crane Sam Crane Bill Craver George Crawford Sam Crawford George Creamer Mark Creegan Gus Creely Pete Cregan Jim Creighton Morrie Critchley Art Croft Harry Croft Dan Cronin Jack Cronin Jack Crooks George Crosby Amos Cross Clarence Cross Joe Cross Lave Cross Lem Cross Monte Cross Doug Crothers Joe Crotty Billy Crowell Bill Crowley John Crowley Jim Cudworth John Cuff John Cullen Candy Cummings Bert Cunningham Nig Cuppy Doc Curley John Curran Wes Curry Jim Curtiss Ed Cushman Ned Cuthbert D Bill Dahlen John Dailey Con Daily Ed Daily Hugh Daily Vince Dailey George Daisy Bill Daley Abner Dalrymple Joe Daly Tom Daly Bill Dammann Charlie Daniels Law Daniels Pete Daniels George Darby Dell Darling Jack Darragh Dan Daub George Davies Daisy Davis George Davis Harry Davis Ira Davis Jumbo Davis Wiley Davis Bill Day Ren Deagle Pat Dealy John Deasley Dory Dean Harry Deane Pat Deasley Frank Decker George Decker Harry Decker Jim Dee Herman Dehlman Ed Delahanty Tom Delahanty Bill Delaney Fred Demarais Harry DeMiller Gene DeMontreville Jerry Denny Roger Denzer Gene Derby George Derby Jim Devlin (1870s P) Jim Devlin (1880s P) Charlie Dewald Charlie Dexter Buttercup Dickerson Steve Dignan Pat Dillard John Dillon Packy Dillon Pop Dillon Bill Dinneen Frank Diven Fred Doe Ed Doheny Cozy Dolan Joe Dolan John Dolan Tom Dolan Lester Dole Jiggs Donahue Jim Donahue Red Donahue Tim Donahue Frank Donnelly James Donnelly Jim Donnelly Pete Donnelly Alexander Donoghue Bill Donovan Fred Donovan Patsy Donovan John Doran Jerry Dorgan Mike Dorgan Bert Dorr Joseph Dorsey Herm Doscher Babe Doty Charlie Dougherty Klondike Douglass Clarence Dow Tommy Dowd Joe Dowie Pete Dowling Tom Dowse Conny Doyle Jack Doyle Jacob Doyle John Doyle Lyman Drake Dave Drew Dennis Driscoll Denny Driscoll Mike Drissel Charlie Duffee Ed Duffy Hugh Duffy Bill Dugan Ed Dugan Dan Dugdale Bill Duggleby Martin Duke Jim Duncan Ed Dundon Sam Dungan Davey Dunkle Fred Dunlap Jack Dunn Steve Dunn Andy Dunning Jesse Duryea Bill Duzen Al Dwight Frank Dwyer John Dwyer John Dyler E Bill Eagan Bill Eagle Howard Earl Billy Earle Mal Eason Harry East Henry Easterday Jack Easton Hi Ebright Charlie Eden Edwards Jim Egan Rip Egan Dave Eggler Red
</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.