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>
stop on the North Island Main Trunk Railway. There are only two passenger trains run by KiwiRail: the weekday-only Capital Connection commuter train once a day to and from Wellington, and is a stop for the Northern Explorer to and from Auckland and Wellington. Until 1964, the railway ran through the city centre, with Palmerston North Railway Station in The Square. The station was moved and the track diverted to the north by the Milson Deviation in 1959–1963; work on the deviation had started in 1926. Near the current railway station, the North Island Main Trunk railway is joined by the Palmerston North - Gisborne Line, which runs through the Manawatu Gorge to Woodville and Hawke's Bay. A connection to the Wairarapa Line is at Woodville. Education Palmerston North is considered "the student city" of New Zealand North Island. It is an important base for tertiary institutions. The home campuses of Massey University, Universal College of Learning (UCOL) and Institute of the Pacific United (IPU) are here. A large proportion of Palmerston North's population consists of students attending these institutions or the various Papaioea Campuses of Te Wananga o Aotearoa during the student year. Tertiary Education Institutions Primary and Secondary Schools Palmerston North has five state secondary schools: Palmerston North Boys' High School and Queen Elizabeth College in the north, Freyberg High School in the north-east, Palmerston North Girls High School in the south, and Awatapu College in the south-west. The city also has one state-integrated Catholic secondary school, St Peter's College. Palmerston North also has one special character secondary school: Cornerstone Christian School, Palmerston North Media The major daily newspaper is the Manawatu Standard. The weekly community newspaper is the Guardian. Most radio stations are based outside the city, however some on the nationwide networks have studios in Palmerston North. Local radio stations include More FM (formerly "2XS") featuring the popular "Mike West in the Morning" breakfast show from 6am-10am. Sister station The Breeze also has a local breakfast show from 6am-10am hosted by Burnzee. Radio Control is the local alternative student radio station, featuring local personality Abi Symes on "The Continental Breakfast" from 7 am to 9 am. Access Manawatu 999AM is a local community station and Kia Ora FM is the local Iwi station. The city's main television and FM radio transmitter is located atop Wharite Peak, northeast of the city centre. The first transmitter at the site was commissioned in 1963 to relay Wellington's WNTV1 channel (now part of TVNZ 1). Sister cities Palmerston North has four sister cities: Missoula, Montana, United States Guiyang, People's Republic of China Kunshan, People's Republic of China Mihara, Hiroshima, Japan Personalities Grant Robertson (born 1971), Labour MP; born in Palmerston North. Current MP for Wellington Central. Shane Cortese (born 1968), actor and singer Joseph Nathan (1835–1912), founder of Glaxo (since merged to become the multinational GlaxoSmithKline). Alan Loveday (1928–2016), violinist Ross Taylor (born 1984), former New Zealand Black Caps captain and Central Districts batsman (cricket) Matthew Conger (born 1978), current FIFA international football referee Brendon Hartley (born 1989), racing driver and World Endurance Championship champion Named after the city An NAC Vickers Viscount (ZK-NAI) was named "City of Palmerston North". This aircraft was withdrawn from NAC service in 1975. An Ansett New Zealand de Havilland Canada Dash 8 (ZK-NES) was also named "City of Palmerston North", staying in service until the airline's demise. References External links Official websites Official Website of Palmerston North City & Manawatu Palmerston North City Council Street Maps and Property Information Unofficial portals The Square Palmerston North portal Palmerston North City Portal Category:Main urban areas in
</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.