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>
that the company was awarded the title by Utility Week magazine three years in succession while no other water company has won it more than once." 1992 Sludge tip blocks River Colne Huddersfield Landslip of sewage sludge engulfed a sewage works at Huddersfield in 1992. Almost of sewage slipped from its Deighton waste tip on to the plant, and completely blocked of the River Colne. The disaster also forced the closure of a nearby ICI plant. 1995 water shortage For many months between September 1995 and January 1996 reservoirs in the west side of the region ran dry and water had to be taken by (up to) 700 tankers (delivering of water a day) from the east side of the region near Goole in a convoy of trucks with 3,500 daily deliveries along the M62 in a drastic emergency measure which cost £3 million a week. The trucks were famously shown on TV delivering water into Booth Wood Reservoir. The company has now built a pipeline from the east to the west to allow balancing of water levels to take place should the need arise. 2007 Hull floods The company came under intense criticism when the Bransholme pumping station failed, worsening the flood damage of the city and flooding two thousand homes on the Kingswood and Bransholme estates. The pumping station was upgraded in 2015. Customer service Yorkshire Water ranked 11th of 21 water companies in Ofwat’s ‘Satisfaction by company’ survey 2012/13. in January 2015 the UK Customer Service Index (UKCSI) announced that Yorkshire Water was the leader for service in the Utilities sector, they were also the second most improved organisation in the whole UKCSI, beating competitors such as Severn Trent, Anglian, Thames Water as well as United Utilities and EDF. The UKCSI is the only external measure showing the state of customer satisfaction in the UK and allows individuals to benchmark across all sectors as well as utilities. Drinking water quality Not taking into account human composition: In the year ending 31 March 2013, 99.93% of Yorkshire Water’s samples met the UK standards; in the previous year it was 99.95%. Carbon footprint In 2012/13 the company’s greenhouse gas emissions totalled 386 kilotonnes, compared to 394 kilotonnes the previous year. Constituents The authority created in 1973 took over the following public sector water supply utilities: Barnsley Corporation Bradford Corporation Huddersfield Corporation Kingston upon Hull Corporation Leeds Corporation Rotherham Corporation Scarborough Corporation Sheffield Corporation Norton Urban District Council Rawmarsh Urban District Council Calderdale Water Board Claro Water Board Craven Water Board Doncaster and District Joint Water Board East Yorkshire (Wolds Area) Water Board Mid Calder Water Board Northallerton and the Dales Water Board Pontefract, Goole and Selby Water Board Rombalds Water Board Ryedale Joint Water Board Wakefield and District Water Board Yorkshire River Authority In early 1999 the company took over York Waterworks Company, a small water-only company serving the city of York. Reservoirs Yorkshire Water allows recreational use of some of its reservoirs. Activities include walking, fishing, horse riding, cycling, water sports and bird watching. Reservoirs with public access include: Agden Reservoir Angram Reservoir Ardsley Reservoir Baitings Reservoir Beaver Dyke Reservoirs Blackmoorfoot Reservoir Broomhead Reservoir Dale Dike Reservoir Damflask Reservoir Digley Reservoir Doe Park Reservoir Eccup Reservoir Embsay Reservoir Fewston Reservoir Gorple Reservoir Grimwith Reservoir Haworth Moor Reservoir Hewenden Reservoir Holme Styes Reservoir Ingbirchworth Reservoir Langsett Reservoir Longwood Reservoir Manshead Reservoir More Hall Reservoir Ogden Reservoir Ponden Reservoir Ramsden Wood Reservoir Redmires Reservoirs Reva Reservoir Rivelin Reservoir Royd Moor Reservoir Ryburn Reservoir Scammonden Reservoir Scar House Reservoir Scout Dike Reservoir Swinsty Reservoir Thornton Steward Reservoir Thruscross Reservoir Timble Reservoir
</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.