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>
The squadron deployed to the Marianas, arriving at NAB Tinian on 25 May 1945, coming briefly under the operational control of FAW18. By 31 May 1945, the squadron had arrived at Yontan Airfield, Okinawa, under the operational control of FAW-1. The squadron relieved the previous Bat-equipped squadron, VPB-109. This move placed the Bat-equipped aircraft within closer range of large ship targets near the Japanese home islands. Anti-shipping patrols were commenced off Korea, Tsushima Island, Getto Retto, Kyushu, Honshu and China. Nearly all combat patrols commenced immediately prior to daybreak, in two aircraft sections. Conditions at Yontan were extremely primitive. Tents were utilized for berthing and administrative spaces until mid-July, when Quonset huts became available for office use. Electrical power, rations and water were in short supply. Conditions did not improve until crews began rotation to Tinian for rest and relaxation. Returning crews brought back additional tents, food and recreational materials to ease the tedium at Yontan. 10–15 August 1945: The squadron’s last combat mission took place off the east coast of Korea. On 15 August 1945, all combat operations ceased. During a comparatively short tour of combat action, the squadron flew 230 combat missions sinking 67 enemy ships. There were no positive results from the deployment of the Bat with VPB-123. By the time the squadron arrived, few suitable targets for the missile were left. The pilots had minimal enthusiasm for the missile and preferred established bombing techniques to the new and relatively untried device. Many Bats were jettisoned by their crews without a target in sight. 25 August – September 1945: VPB-123 was transferred from Yontan Airfield to NAS Agana, Guam, coming under the operational control of FAW-18. The space at Yontan was needed by the USAAF in preparation for its Occupation of Japan. The squadron remained at NAS Agana until 6 September 1945, when it was relocated briefly back to Yontan Field, as a part of the Okinawa Landplane Search Unit. 10 September – October 1945: VPB-123 was relocated to NAB Yonabaru, Okinawa, to provide security patrols and typhoon tracking for the fleet. On 9 October 1945, a typhoon struck Okinawa, damaging the squadron’s buildings and tents, but with no damage to any of its aircraft. By the end of October, demobilization had reduced the squadron manpower to almost one third of its assigned strength. *19 November 1945: The squadron was relieved by VPB-128 for assignment to its new home port at NAS Barbers Point, Hawaii. The lack of maintenance facilities for the PB4Y-2 type of aircraft led to the reassignment of eight pilots to a photographic training course and conversion to the F6F-2P Hellcat. The remainder of the squadron formed its own maintenance group and received training from a CASU-2 detachment temporarily assigned to the squadron. 24 January – 5 February 1946: One VPB-123 crew was detached for photographic missions over Bikini Atoll, which was to be used at a later date in the nuclear weapons testing program. 19 February – 15 May 1946: VPB-123 was given the temporary duty of ferrying aircraft from NAS Kaneohe to the West Coast. 1 October 1946: VP-123 was disestablished at NAS Barbers Point. Aircraft assignments The squadron was assigned the following aircraft, effective on the dates shown: PV-1 - April 1943 PB4Y-1 - October 1944 PB4Y-2 - December 1944 Home port assignments The squadron was assigned to these home ports, effective on the dates shown: NAS Alameda, California - 21 April 1943 NAS Kaneohe Bay, Hawaii - 25 June 1943 NAS Alameda, California - April 1944 NAS Hutchinson, Kansas - 18 October 1944 NAS Alameda - 20 November 1944 NAAS
</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.