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>
Reudnitz, Sellerhausen and Paunsdorf with the town center, and in addition the large Paunsdorf-Center shopping center.Lines 8/8ETo connect the large housing estates of Grünau-Nord and Paunsdorf as well as the districts of Lindenau und Volkmarsdorf with the southern town center, Line 8 operates during daytime service hours. On Mondays through Fridays, modernized tow-car formations of Tatra stock operate every 10 minutes, and on weekends every 15 minutes. On Sunday mornings only, Line 8E trams operate through workings with Line 2E services to the Naunhofer Straße. At these times, the NGT8 cars reverse at the Angerbrücke Depot.Line 9Line 9 operates during weekday daytime service hours every 10 minutes, and every 15 minutes at other times. Until November 2015 it connected the housing developments of Mockau, Südvorstadt-Ost, Connewitz and Markkleeberg-West with the town center. Since then the Services of Line 9 terminate at S-Bahnhof Connewitz, the route to Markkleeberg-West was closed. In 2018, mostly NGT8 low-floor-trams serve the Line.Line 10Only during weekday daytime service hours do the NGT8 low-floor vehicles serve Line 10. The segment between Wahren and Hauptbahnhof does not operate on Sunday mornings. The service frequencies correspond to those provided on other lines, thus weekdays every 10 minutes, on weekends 15 minutes. The line connects the large housing estate at Lößnig as well as the districts of Connewitz, Südvorstadt, Gohlis, Möckern and Wahren with the town center.Lines 11/11ELine 11 is the longest line of the Lepzig tramway network. It operates through three fare zones and crosses the municipal boundary at both extremities. During weekday daytime service hours, both lines operate every 20 minutes, with Line 11E working only to Dölitz. On line 11, three-car Tatra-Großzüge formations with low-floor trailers are used, and on line 11E both Tatra-Großzüge and the new Leoliner stock are used. At other times, the two lines operate every 30 minutes and Line 11E terminates at Markkleeberg-Ost. Both lines are worked with two-car Tatra formations, and Line 11 is thereby worked mostly by low-floor tramcars. The lines connect the neighboring towns of Schkeuditz, Lützschena and Markkleeberg, and the districts of Wahren, Möckern, Gohlis, Südvorstadt, Connewitz and Dölitz with the Leipziger Stadtzentrum (Leipzig town center).Lines 12/4EThe two lines, 4E and 12, operate through workings, that is, services, worked primarily by NGT8 stock, operate through and line designations are changed at terminals. Line 4E, however, operates only during daytime service hours, on weekdays only during peak periods. At noon the direction of travel changes. Thereafter, only Line 12 operates between Gohlis-Nord and Johannisplatz. Earlier services operate from Gohlis-Nord via the Prager Straße, the Riebeckstraße, and Reudnitz before returning to Gohlis-Nord. At the Prager Straße / Riebeckstraße intersection, the line number is changed. However, afternoon services operate around the "Ring" in the opposite direction. Line numbers are changed at the Goerdelerring and at the Prager Straße / Riebeckstraße intersection. On weekdays and on Saturdays, during daytime service hours, service operates at 10-minute intervals, and at 15-minute intervals at other times. The two lines connect the districts of Gohlis, Nordvorstadt, Reudnitz and Thonberg with the town center.Line 14This line, under threat of closure, operates every 20 minutes Monday to Saturday during daytime service hours, and every 30 minutes at other times. NGT8 stock, LEOLINER motor trams are used only. The line connects the residential area of Plagwitz with the town center.Line 15The busiest line of the Leipzig tramway network is served during weekday daytime hours every 10 minutes, and every 15 minutes at other times. Bombardier Classic-XXL stock, each with the capacity of a three-car Tatra formation (Tatra-Großzug), entered service from 2005 / 2006. Because only 12 Bombardier vehicles are on
</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.