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>
and overhaul services, ground handling services, packaged holiday products, aviation training as well as IT services. Destinations SriLankan currently operates an online network of 40 destinations and codeshares with other airlines to provide services to a total of 42 cities in 20 countries. Its interline partnerships and the membership in Oneworld alliance allows it to offer passengers the connectivity to over 1,000 cities in 160 countries. SriLankan is currently the largest foreign airline operating service to India, in terms of destinations, serving 14 cities. It is also the largest foreign airline into the Maldives, serving 2 cities. Alliance On 11 June 2012, SriLankan Airlines was announced as oneworld's latest member-elect, on the sidelines of the IATA World Air Transport Summit in Beijing. Cathay Pacific served Sri Lankan Airlines as its sponsor through its alliance implementation program. Its membership implementation took approximately 18 months. SriLankan Airlines joined the airline alliance on 1 May 2014 as the first carrier from the Indian Sub-continent. Codeshare agreements SriLankan Airlines codeshares with the following airlines: Air Canada Air India Alitalia American Airlines Asiana Airlines Cinnamon Air Etihad Airways Finnair Gulf Air Japan Airlines Malaysia Airlines Myanmar Airways International Oman Air Qatar Airways Interline agreements SriLankan Airlines have Interline agreements with the following airlines: Pakistan International Airlines Fleet Current fleet SriLankan Airlines has an all Airbus fleet. , the SriLankan Airlines fleet consists of the following aircraft: Formerly operated Fleet development The airline received its first Airbus aircraft in 1992, the Airbus A320-200 began flying to the airline's regional routes in Maldives, Pakistan and southern India. The Airbus A340-300 aircraft were ordered during the time of President Premadasa, the first A340 was delivered in 1994. The airline was the first in Asia to use the A340. The Airbus A330-200 aircraft were delivered during the rule of President Chandrika. In 2012, during the time of President Rajapakse, SriLankan Airlines aimed to boost its fleet to 35 aircraft over the next five years, and had talks with both Airbus and Boeing regarding a deal. SriLankan's former CEO Kapila Chandrasena stated that the carrier wanted to add either Airbus A330-300, Boeing 787-8 or Boeing 777-300ER aircraft to its fleet to replace its Airbus A340-300s, with deliveries beginning in 2013–2014. In April 2013, it was announced that SriLankan Airlines had won government approval to acquire four Airbus A350-900 and seven A330-300 aircraft, with deliveries of the A330-300 starting from October 2014. Deliveries for the ordered A350-900s are set to commence in 2019. A further three Airbus A350-900s were leased, with deliveries of these aircraft starting in 2017. SriLankan phased out its last Airbus A340-300 on 7 January 2016, replaced by the A330-300 and the future A350-900. As of January 2016, construction of the airline's first Airbus A350-900 has started. On 23 February 2015, SriLankan Airlines finalized a deal with Air Lease Corporation and AerCap to acquire two Airbus A321neo aircraft, one from each leasing firm. On 10 May 2016, due to financial difficulties, the airline announced it would cancel its order of eight A350 aircraft. As of December 2019, the four aircraft of Airbus A350-900 are still in the Airbus monthly order book, and not yet been canceled or converted order to A330-900. Services Cabin SriLankan offers two classes of service, Business Class and Economy Class. In Business Class, SriLankan offers full flat-bed seats on all of its long haul fleet with Audio Video on Demand (AVOD) facilities. The fully flat bed seat offers a 19.5 inches wide seat that can be reclined into a 180 degree 79 inches long bed. Each seat has a 15-inch personal IFE system. SriLankan's
</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.