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>
(BS 480 - BS 680) 727-200(BS 480 - BS 720D) 114:Air Conditioning Distribution Bay 727-100(BS 680 - BS 740) 727-200(BS 680 - BS 720D - BS 740) 115:Aft Cargo Compartment (BS 952 - BS 1176) 116:Forward Stairs and Fairing Door (BS 303.9 - BS 351.2, If Applicable) 131:Nose Wheel Well (BS 227.8 - BS 351.2) 132:Keel Beam Area (Antenna Bays) (BS 740 - BS 960) 133:Left Air Conditioning Equipment Compartment 727-100(BS 580 - BS 870) 727-200(BS 698 - BS 870) 134:Right Air Conditioning Equipment Compartment 727-100(BS 580 - BS 870) 727-200(BS 698 - BS 870) 135:Left Main Wheel Well And Wing To Body Fairing 727-100 (BS 870 - BS 1076) 727-200(BS 870 - BS 1007) 136:Right Main Wheel Well And Wing To Body Fairing 727-100 (BS 870 - BS 1076) 727-200(BS 870 - BS 1007) 141:Radome (BS 130 - BS 178) 174:Bladder Fuel Cell Area Tank 2 (Left BBL 70.5 - Right BBL 70.5) Zone 200 Fuselage Top 221:Control Cabin Left (BS 178 - BS 259.5) 222:Control Cabin Right (BS 178 - BS 259.5) 223:Third Crewmember Station (BS 259.5 - BS 302) 224:Passenger Cabin (BS 302 - BS 1183) 225:Forward Lavatory Compartment (BS 304 - BS 343) 226:Galley Units No1 & No2 (BS 600 - BS 708) 227:Aft Left Lavatory Compartment (BS 1137 - BS 1176) 228:Aft Right Lavatory Compartment (BS 1137 - BS 1176) 237:Aft Airstairs Left Equipment Area (BS 1183 - BS 1342.4) 238:Aft Airstairs Right Equipment Area (BS 1183 - BS 1342.4) 239:Tailskid Compartment 242:Forward Entry Door (BS 312) 246:Aft Entry Door (BS 1183) 246A:Aft Service Door (BS 1052) 247:Aft Airstairs (BS 1223) 248:Main Cargo Door (BS 480 - BS 620 If Applicable) 249:Escape Hatches (BS 772 - BS 873) Zone 300 Stabilizers / Empennage 391:Left Horizontal Stabilizer (Inspar) 391A:Left Horizontal Stabilizer (Leading Edge) 391B:Left Horizontal Stabilizer (Trailing Edge) 392:Right Horizontal Stabilizer (Inspar) 392A:Right Horizontal Stabilizer (Leading Edge) 392B:Right Horizontal Stabiliser (Trailing Edge) 393:Left Elevator And Tab 394:Right Elevator And Tab 395:Vertical Fin (Inspar) 395A:Vertical Fin (Leading Edge) 395B:Vertical Fin (Trailing Edge) 396:Stabilizer Trim Mechanism Compartment 397:Vertical Fin Tip Fairing 398:Upper Rudder And Tab 399:Lower Rudder And Tab Zone 400 Nacelles-Pylons 451:Engine No1 452:Engine No2 453:Engine No3 454:Engine Strut No1 455:Engine Strut No3 Zone 500 Left Wing 561:Left Removable Wing Tip 562:Left Outboard Wing Leading Edge (Inc Slats 1 -4 WS 332.5 - WS 790) 563:Left Inbd Wing Leading Edge (Inc L.D Flaps 1 -3 WBL 70.597 - WS 332.5) 571:Left Fuel Vent Surge Tank And Fuel Vent Outlet (Left WS 716.5 - Removable Wing Tip) 572:Tank No 1 ( Left WS 224.5 - Left WS 715.5) 573:Left Integral Section Tank No 2 (Left WBL 70.597 - WS 2244.5) 581:Left Wing Trailing Edge, Outbd Aileron And Control Tab 582:Left Wing Trailing Edge Outbd Flap And Spoilers No1 - No4 583:Left Wing Trailing Edge, Inbd Aileron And Control Tab 584:Left Wing Trailing Edge, Inbd Flap And Spoilers No5 - No7 Zone 600 Right Wing 664:Right Inbd Wing Leading Edge (Inc L.D Edge Flaps No44 - No6 WBL 70.597 - WS 332.5) 665:Right Otbd Wing Leading Edge (Inc Slats No5 - No8 WS 322.5 - WS 790) 666:Right Removable Wing Tip 675:Right Integral Section Tank No2 (Right WBL 70.597 - Right WS 224.5) 676:Tank No3 (Right WS 224.5 - Right WS 716.5) 677:Right Fuel Vent Surge Tank And Fuel Outlet (Right WS 716.5 - Removable Wing Tip) 685:Right Wing Trailing Edge, Inbd Flap And Spoilers No8 - No10 686:Right Wing Trailing Edge, Inbd Aileron And Control Tab 687:Right Wing Trailing Edge, Otbd Flap And Spoilers No11 - No14 688:Right Wing Trailing Edge, Otbd Aileron And Control Tab Zone 700
</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.