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>
Agrasen Maharaja Agrasen was a legendary Indian king (Maharaja) of Agroha, a city of traders. The Agrawal and Rajvanshi communities claim descent from him. He is credited with the establishment of a kingdom of traders in North India named Agroha, and is known for his compassion in refusing to slaughter animals in yajnas. The Government of India issued a postage stamp in honour of Maharaja Agrasen in 1976. Origin of the legend The Agrasen legend can be traced to Agarwalon ki Utpatti ("Origin of the Agrawals"), an 1871 essay written by Bharatendu Harishchandra (1850-1885), a noted Agrawal author and poet. He claimed to have compiled the legend from "tradition" and "ancient writings", especially a text called Sri Mahalakshmi Vrat Ki Katha. He stated that Sri Mahalakshmi Vrat Ki Katha was contained in the Bhavishya Purana, which exists in several recensions. However, independent researchers have been unable to find the legend in any version of Bhavishya Purana. In 1976, the Agrawal historian Satyaketu Vidyalankar published a copy of the Mahalakshmi Vrat Ki Katha in his Agrwal Jati Ka Prachin Itihas ("Ancient History of the Agrawal caste"). He stated that he had found this copy in the personal library of Bharatendu Harishchandra. However, the text does not contain any clue about its origin. Legends and beliefs Agrasen was a vysya king of the Solar Dynasty who adopted Vanika dharma for the benefit of his people. Literally, Agrawal means the "children of Agrasen" or the "people of Agroha", a city in ancient Kuru Panchala, near Hisar in Haryana region said to be founded by Agrasen. According to Bharatendu Harishchandra's account, Maharaja Agrasen was a Suryavanshi Kshatriya king, born during the last stages of Dwapar Yuga in the Mahabharat epic era, he was contemporaneous to Lord Krishna. He was Son of King Vallabha dev who was Descendant of kush(Lord Rama's Son). He was also descendant of Suryavanshi King Mandhata. King Mandhata had two sons, Gunadhi and Mohan. Agrasen was the eldest son of the King Vallabh, descendant of Mohan, of Pratapnagar. Agrasen fathered 18 children, from whom the Agrawal gotras came into being. Agrasen attended the swayamvara of Madhavi, the daughter of the King Nagaraj Kumud. However, Indra, the God of Heaven and also the lord of storms and rainfall, wanted to marry Madhavi, but she chose Agrasen as her husband. Because of this, Indra became furious and decided to take revenge by making sure that Pratapnagar do not receive any rain. As a result, a famine struck Agrasen's kingdom, who then decided to wage a war against Indra. Sage Narada was approached by Indra, who mediated peace between Agrasen and Indra. As per the advice of Maharishi Garg, he also married Sundaravati to increase his wealth and health. He is said to have married 17 naga-kanyas. Agroha was called as Agreya in its original period. Pratapnagar was the birthplace of Maharaj Agrasen, and Agreya was his kingdom. King Agrasen made it capital of his state, a city in ancient Kuru Panchala called after him Agreya. Agreya republic had its frontiers extending from Takshashila valley in the West to Lohit (Brahmaputra) river valley in the east, to which Himalayan rages formed northern frontiers and river Ganges and Sarswati formed southern frontier. He is well renowned due to his famous policy of one brick and one coin. It is said that one who came to his kingdom, to be a citizen, was given 1 brick and 1 coin by every other resident. The coins he would end up with, would provide money to set up a new business (thus ensuring his income) and the bricks
</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.