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>
township of Tunstall Court, a liberty in the parish of Woolstanton, four miles from Newcastle, pleasantly situated on an eminence, deriving its name from the Saxon word, tun or ton, a town, and stall, an elevated place, seat or station." "In this township abounds coal, ironstone, marl and fine cannel coal; and the manufactories of earthenware are very extensive here." 1828 journal "Tunstall.-- town with ry. sta., Wolstanton par., Staffordshire, on the Grand Trunk Canal, 2½ miles NE. and within the parliamentary limits of Newcastle under Lyme, 690 ac., pop. 14,244; P.O., T.O., 3 Banks. Tunstall shares in the industries of the Potteries. It has rapidly risen from a village to a considerable town, with a fine town hall in the centre of a spacious market-place." John Bartholomew, Gazetteer of the British Isles (1887) Potters There is evidence of small-scale pottery manufacturing in Tunstall from the 14th century. However, Tunstall was one of the last of towns in the Potteries to begin large scale pottery manufacturing, with the main focus being on farming, and to a lesser extent, coal & iron mining and mills. Thus Tunstall was not affected by the 1842 Pottery Riots. However, Tunstall still has a rich industrial heritage. At the start of the 19th century there were 3 pottery works in the town, by the close of the century that number had risen to 13. Famous potters located in the town have been the Adams dynasty of potters founded by William Adams, as well as Alfred Meakin, Booths founded by Enoch Booth and Enoch Wedgwood. Robert Beswick, father of Beswick Pottery founder James Wright Beswick, began making pottery in Tunstall. Jabez Vodrey is a noted emigrant potter, the first English potter west of the Appalachian Mountains. Clarice Cliff (20 January 1899 – 23 October 1972) was an English ceramic industrial artist active from 1922 to 1963. Charles Shaw was a 19th-century potter who's in-depth autobiography has given some of the clearest insights into the Victorian Potteries, and provided Arnold Bennett with inspiration for his Clayhanger novels. Tunstall became widely known for its tiles, regarded to be as good as slate. Decorative ceramic tiles are still made in Tunstall by H and R Johnson-Richards Tiles Ltd. Transport Tunstall's industries were served by the Trent and Mersey Canal, constructed over 11 years from 1766. The canal was designed by James Brindley, resident of Turnhurst Hall in nearby Chell. Just north of Tunstall lies one of Brindley's greatest achievements, the Harecastle Tunnel, which takes the Trent and Mersey Canal underneath Goldenhill. Barges were 'legged' through by men lying on their backs on top of the barges and pushing against the roof with their feet. This was a physically demanding and slow, causing major delays, so in 1827 leading civil engineer Thomas Telford was commissioned to provide a second, and wider, parallel tunnel with a towpath. Today the Harecastle Tunnels are the fourth longest canal tunnels in the UK. Tunstall was served by a railway station, which was opened by the North Staffordshire Railway on 1 December 1873. This closed under the Beeching Axe in 1965 with the removal of the Potteries Loop Line. Today Tunstall lies roughly equidistant between Longport and Kidsgrove railway stations on the Stafford to Manchester Line, a branch of the West Coast Main Line (Network Rail Route 18). There are also direct services to Crewe and Derby. It is also well served by buses provided by: Baker Coaches, Clowes Coaches, D&G Coaches, Wardle Transport and First Potteries, connecting Tunstall to all surrounding settlements. The A50 is the main arterial route through Tunstall, running from Warrington
</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.