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>
death of original race promoter Charles Kepley. Half Mile uncertainty & revival The track stopped weekly racing on the half-mile tri-oval in 2012, only the quarter-mile oval has hosted weekly racing since. The quarter-mile weekly program features INEX Legends, INEX Bandoleros, along with Davis Mini Cups, go-karts, and quarter midgets on select nights. The quarter-mile traditionally featured racing from March to May, and August to early October – with a 2-month break in June and July. Previously, this layout also featured USAC Speed2 Eastern Midgets during the summer months (2008–2010). In 2015, racing returned to the half-mile tri-oval after not hosting any touring series for the past 2 years, the opening event featured the PASS South Super Late Models and Koma Unwind Modified Madness Series running on Memorial Day weekend. That season also saw the return of the North-South Shootout event in November. Alongside the John Blewett III Memorial 125 for the Tour-type Modifieds, other touring series such as the PASS South Super Late Models were a part of the event. CARS Tour also returned that year – now in the dual series format for Super Late Models & Late Model Stock Cars. CARS Tour ran for 3 seasons until the end of 2017. On May 5, 2018, the track hosted the Minimizer Bandit Big Rig Series. Defending series champion Ricky Rude got the lead on lap #6 & won the A-main feature. Closure On January 9, 2019, North-South Shootout promoter Renee Hackett announced that the event would move away from the facility to Hickory Motor Speedway due to the uncertain future of the Concord Speedway complex. The track would continue to host the INEX Legend Cars & INEX Bandoleros on the quarter-mile track. On July 2, 2019, it was announced that the track would be sold, and that leaders in each of the weekly series point standings would be awarded championship trophies for the year. The buyer was later reported to be Copart. Notable competitors Winners and competitors at the track include Freddy Query, Dale Earnhardt Jr., Jack Sprague, Ernie Irvan, Bobby Labonte, Denny Bennet, Justin Labonte, Clay Rogers, Jimmy Simpson, Bobby Gill, Dale Earnhardt Sr., Bobby Measmer Jr., Ryan Preece, Buster Bennet, Jeff Melton and Josh Hogan Statistics The park consists of two tracks: a -mile tri-oval and a -mile oval. Originally the -mile oval was a -mile oval and the -mile was added later. The -mile is still there but only used for Davis Mini Cups and quarter midgets. The tri-oval seats 8,500 fans with room for 28 RVs, while the 1/4 mile track seats 2,050. Additionally, the track has several air-conditioned suites located behind the main grandstand. The track is active as a site for the filming of several television commercials, television shows, movies, and music videos. Events Former touring series & events (half-mile) ALL PRO Super Series (1987) Allison Legacy Race Series (1997, 2004, 2006–2008, 2010–11, 2017–18) ARCA/CRA Super Series - Southern Division (2010) ASA National Tour (2001, 2003) ASA Late Model Series - Southern Division (2008–09) CARS Tour CARS Late Model Stock Tour (2015-–2017) CARS Super Late Model Tour (2015–2017) CARS Pro Cup Series (1998–2000, 2002–2011) ISMA Supermodifieds (1993) ISCARS Dash Touring Series (2010) KOMA Unwind Modified Madness Series (2015) Lucas Oil Pro Pulling League Mid-Atlantic Limited Late Model Series (2016) Mid-Atlantic Street Stock Championship (2015–2016, 2018) Minimizer Bandit Big Rig Series (2018) NASCAR NASCAR Goodys Dash Series (1989–1990, 1997–1998) NASCAR AutoZone Elite Division, Southeast Series (1997–1998) NASCAR Whelen Southern Modified Tour (2009, 2016) NDRA Stroh's Pro National Series (1983) Pro All Stars Series PASS South Super Late Model Series (2007, 2012, 2015–2017) PASS
</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.