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>
Ron Evans Ronald Barry Evans AM (7 July 1939 – 9 March 2007) was an Australian rules footballer, Chairman of the Australian Football League (AFL) from 1998 to 2007, as well as President of the Essendon Football Club from 1988 to 1992. Education Evans was educated at Caulfield Grammar School in Melbourne, where he was a classmate of linguist Michael Clyne, businessman Ron Walker, and 1960 Brownlow Medal winner John Schultz. He played full-forward in Caulfield Grammar's First XVIII, a team which also contained two other future VFL players: Ron Cabble who played with Hawthorn, and Footscray's John Schultz. Evans later gained both a BSc and an MBA. Football career Although not solidly built (he weighed 78 kg), he was 6'2" (188 cm), and his very long arms gave him extra inches in marking contests. Recruited from Essendon Baptists in 1958 — he had broken the Essendon District Football League's Essendon goalkicking record in 1957 — he played his first senior match for Essendon, as a reserve, at the Melbourne Cricket Ground, against Melbourne on 10 May 1958. Altogether, he played 64 games for Essendon from 1958 to 1962, mostly at full-forward, kicking 210 goals. He played his best football under coach Dick Reynolds. He missed a number of games through injury in 1961; but, in 1962, John Coleman's second year as coach, he only played six senior games for Essendon, having lost his regular place at full-forward to Charlie Payne. His brief senior record is impressive: 1958: 10 games (2 as a reserve), 27 goals (including 7 goals in one match) — plus 1 night game, 1 goal. 1959: 20 games, 78 goals (including 9 goals in a match on two occasions, and 6 goals in a match on another two occasions) 1959: full-forward in losing Grand-Final team)1959 VFL season#Grand Final Teams 1959: Victorian State Team 1959: VFL Leading Goalkicker at 19 years, 78 goals (including 5 goals from only 6 touches in the 1959 First Semi-Final against Collingwood, and 2 goals in the losing GrandFinal against Melbourne) 1960: 18 games, 67 goals (including 10 goals in a match on one occasion, 8 goals in a match on one occasion, and 6 goals in a match on another) 1960: Victorian State Team 1960: VFL Leading Goalkicker 67 goals (despite being the competition's leading goalkicker, Evans was held goal-less in Essendon's 1960 First Semi-Final loss to Collingwood) 1961: 10 games (1 as a reserve), 21 goals — plus 1 night game, 3 goals. 1962: 6 games, 16 goals 1962: Last game for Essendon (as a reserve) against St Kilda on 4 August 1962. In 1963, he moved to Western Australia, got his form back, and played a total of 60 games at full-forward for the West Perth Football Club in the Western Australian National Football League (WANFL) over three seasons from 1963 to 1965. 1963: 97 goals 1963: WANFL Leading goalkicker. 1964: 84 goals 1964: West Perth's Leading goalkicker. 1965: 90 goals 1965: West Perth's Leading goalkicker. He retired as a footballer at the end of the 1965 season at the age of 26. Cricket career He was a fine wicket-keeper whilst at Caulfield Grammar School; and, much to the distress of its headmaster, S. W. Kurrle, who wanted him to play for the school's First XI, Evans played his first District cricket match for North Melbourne Cricket Club whilst still at school, at 16 years of age. When he returned to Melbourne after his sojourn in Western Australia, he resumed his cricketing career with North Melbourne, and went on to play a total of 126 games for the North
</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.