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>
De León (surname) __NOTOC__ De León or de León or De Leon is a Spanish origin surname, often toponymic, in which case it may possibly indicate an ultimate family origin in the Kingdom of León or the later Province of León. Geographical distribution As of 2014, 29.7% of all known bearers of the surname de León were residents of the Philippines (frequency 1:647), 26.4% of Guatemala (1:116), 20.0% of Mexico (1:1,179), 8.1% of the Dominican Republic (1:244), 4.1% of Panama (1:182), 2.2% of the United States (1:31,581), 2.1% of Uruguay (1:313), 1.7% of Spain (1:5,084) and 1.0% of El Salvador (1:1,194). In Spain, the frequency of the surname was higher than national average (1:5,084) in the following autonomous communities: 1. Canary Islands (1:427) 2. Community of Madrid (1:4,329) In Guatemala, the frequency of the surname was higher than national average (1:116) in the following departments: 1. San Marcos Department (1:35) 2. Jutiapa Department (1:42) 3. Quetzaltenango Department (1:45) 4. Retalhuleu Department (1:49) 5. El Progreso Department (1:72) 6. Suchitepéquez Department (1:100) 7. Izabal Department (1:106) Persons Homero Tovar De Leòn (born 2000) Alonso de León (c. 1639–1691), Spanish explorer and governor Antonio de León Pinelo (1589–1675), Spanish attorney, judge, and historian Mateo de la Mata Ponce de León ([?]-1720), Spanish colonial officer, interim viceroy of Peru 1716 Aracelli de León (1951–1999), Latin American voice actress Aya de Leon (born 1967), American writer and poet Carlos Enrique Díaz de León (1910–1971), Provisional President of Guatemala 1954 Carlos de León (born May 3, 1959), Puerto Rican boxer Charito de León (born 1939), Filipina actress Constanza de León (1200 - 1242), Spanish infant of León, daughter of Alfonso IX of León Daniel De Leon (1852–1914), Venezuelan-born Sephardic Jew, American socialist and trade unionist Diego de León y Navarrete (1807-1841), Spanish military figure Edwin de Leon (1818-1891), American/Confederate diplomat and writer Gerardo de León (born 1924), Filipino film actor and director Gil de León (born 1925), Filipino film actor and director Joaquín Velázquez de León, Minister of State of Mexico Joel Pimentel De Leon (born 1999) in Hispera California, Mexican American singer in Latin boyband CNCO Joey de Leon (born 1946), Filipino comedian and television host José García de León y Pizarro (1770–1835), Minister of State of Spain 1816–1818 Juan Manuel de León Merchante (1626–1680), Spanish dramatist Juan Ponce de León (1460–1521), Spanish explorer and conquistador Juan Ponce de León II (1524-1591), first Puerto Rican governor of Puerto Rico Juan Velázquez de León (died 1520), Spanish conquistador with Hernán Cortés Juana María de los Dolores de León Smith (1798–1872), wife of General Sir Harry Smith, Governor of the Cape Colony, South Africa Kathleen de Leon Jones (born 1977), Filipino-Australian singer, dancer, actress and television performer, Hi-5 Leo de León (2001), Spanish Modern warfare champion, Major League Gamer, Rocket league 2018 Championship winner Luis de León (1527–1591), Spanish lyric poet and Augustinian friar Luis Ponce de León (governor of New Spain) briefly the governor of New Spain, from July 4, 1526 to July 16, 1526 Michael De León, baseball player Miguel de León (born 1962), Venezuelan actor Mike de León (Miguel de Leon) (born 1947), Filipino film director, scriptwriter, and producer Moses de León or Moshe ben Shem-Tov (1250–1305), Spanish rabbi and Kabbalist Nick DeLeon is an American Pool player for the BCA & Cue Sports International Nick DeLeon (born 1990), American soccer player for D.C. United Noel de Leon Oscar de León (born 1943), Venezuelan singer Pablo de León (born 1964), Argentine aerospace engineer Pedro Cieza de León (1520–1554), Jewish-origin New Christian Spanish conquistador and historian Rafael De Leon pr Roaring Lion (1908–1999), Trinidadian
</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.