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>
Luis Dato Luis G. Dato (4 July 1906 – 29 January 1985) was a Filipino poet, writer, educator and politician from Baao, Camarines Sur. He was one of the first Filipinos to write and publish works in English. Among his poems are "The Spouse", "Day on the Farm" and "Among the Hills". In 1927, his "Mi Ultimo Pensamiento" was the first good English translation, in rhymes, of José Rizal's "Mi último adiós". Family Luis was the second son of Eugenio Dato y Esplana and Barbara Guevara y Imperial. His siblings were: Rodolfo Dato (former Dean of the University of Nueva Caceres and edited the anthology Filipino Poetry in 1924); Francisca Dato Flores; Soledad "Choleng" Dato Hidalgo (one of the senior editors of Bikolana magazine published in Naga City in the late 70s; and Pablo Dato. He married Cristeta Imperial y Bañaga. They had eight children: Vicente, Reynaldo, Myrna, Greta, Eugenio, Yolanda, Armi and Barbara. Education Dato attended high school from 1923 to 1924; studied liberal arts from 1924 to 1928; and law (1928–1933) at the newly founded University of the Philippines. Some of his contemporaries were Jose Garcia Villa, Alvaro Martinez, Hose Hernandez, Eugenio Santos and Angela Manalang-Gloria. He continued his law degree at the University of Nueva Caceres in 1951. He also took up his master's Education degree in liberal arts at the University of Saint Anthony from 1971 to 1972. Works and career Dato never took up creative writing courses, but began writing before he enrolled in college. His first poems were published in The Philippine Collegian. In 1926, at the age of 20, he published his book Manila, A Collection of Verse. The book's foreword states: And yet, although the author of the following poems has not mastered the idiom of English, and is not perfectly at ease in metre and rhyme, he thinks as a poet thinks; and there are many lines here, and some complete poems which show that he possesses poetic fervor of unusual intensity. Therefore he merits attention and encouragement.The foreword was written by H. P. Scott, the Head of the Department of English at the College of Liberal Arts in the University of the Philippines. In 1936, he published his second book, My Book of Verses. Dato's poems were anthologized in several published books, such as the Filipino Poetry, Rodolfo Dato; Philippine Prose and Poetry, Jose Garcia Villa; German-English Anthology of Filipino Poets, Pablo Laslo, etc. Dato wrote several books in his native tongue, Bicol, and contributed to several newspapers and magazines; articles such as Kantahon na Bikol (1969), Morfologia kan Tataramon na Bikol (serialized in Naga Times), Patotodon sa Bikol (Bikol Mail), Sarabihon sa Bikol and his translation of the Pasyon, which he entitled, Life of Christ, which is his favorite among his poems. In 1972, while teaching at the University of St. Anthony in Iriga City, he published the Vocabulariong Ingles, Bikol, Castila. In 1975, he wrote the epic The Land of Mai. It is "probably the longest sonnet sequence in the Philippines, numbering nearly 200 sonnets". It narrates the history of the Philippines up to the Marcos' era. He became the municipal mayor of Baao, Camarines Sur, from 1941 to 1947 and co-authored research on Baao local history and pioneered studies on the genealogy of huge families in Baao such as the Imperials, Palencias, etc. He was a member of the faculty at the Naga College (1953–1954), University of Nueva Caceres (1955–1967) and St. Anthony College (now University of Saint Anthony) (1947–1951; 1967–1978). Upon his death, he had an unpublished manuscript that he called The Instant Lyre. It is
</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.