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>
Octavius Sturges Octavius Sturges (1833 – 3 November 1894) was a British paediatrician who coined the term "chorea". Early life He was born in London in 1833, the eighth son (hence the name) of John and Elisabeth Sturges. He attended King's College School and then was sent to the East India Company's Addiscombe Military Seminary, Croydon. After graduation in 1852 he served two years in the army as an officer in the East India Company in Bombay, but his military career ended in his erroneous diagnosis of aortic aneurysm. In 1857 he returned to the UK. Career In July 1858 he enrolled at Emmanuel College, Cambridge to study medicine and graduated B.A. in 1861, M.B. in 1863, and M.D. in 1867. He then began practice in St George's Hospital, becoming medical registrar in 1863. He left to be assistant-physician at the Westminster Hospital in 1868 and became full physician in 1875. He was made assistant-physician to the Hospital for Sick Children in Great Ormond Street in 1873, and full physician in 1884. At the time of his death he was senior physician there and at the Westminster Hospital. He became a member of the Royal College of Physicians in 1863, and was elected Fellow in 1870. He delivered the 1894 Lumleian Lectures on the subject of heart inflammation in children. He wrote a number of articles but he is best remembered for his two books The Natural History of Pneumonia (1876) and Chorea and Whooping Cough (1877) He died in 1894 from injuries received when knocked down by a hansom cab and was buried at Kensal Green Cemetery. He was unmarried. Publications Chorea and Whooping Cough: Five Lectures (1877) On Chorea and Other Allied Movement Disorders of Early Life (1881) In the Company's Service: A Reminiscence with Mary Sturges (1883) The Natural History and Relations of Pneumonia; its Causes, Forms, and Treatment: a Clinical Study with Sidney Coupland (1890, 2nd edition); (1876, 1st edition by Octavius Sturges alone) Articles Abstract of a Clinical Lecture on a Fatal Case of Pneumonia after an Accident Br Med J 1879;1:300 The Nomenclature of Pneumonia and other Allied Lung-Inflammations Br Med J 1881;1:11 The Heart Symptoms of Chorea Brain 1881;4(2):164-189 Remarks on Some Special Characters of the Present Epidemic of Typhoid Fever in London Br Med J 1882;2:1239 The Rheumatic Origin of Chorea The Lancet 1883;122(3141):808–810 The Kindred of Chorea American Journal of the Medical Sciences 1891;102(6):578-586 The Lumleian Lectures on Heart Inflammation in Children Br Med J 1894;1:505, 1894;1:561 and 1894;1:623 Empyema in Childhood The Lancet 1894;143(3689):1215-1216 Correspondence The Westminster Hospital Br Med J 1871;2:451.3 The Treatment of Pneumonia Br Med J 1873;2:739.1 Out-Patients' Medical Relief Br Med J 1875;1:495.1 Dissolution of the Medical Teachers' Association Br Med J 1876;2:840.1 Is Collective Investigation Dangerous? Br Med J 1884;1:483.2 Collective Investigation Br Med J 1884;2:1097.1 The Collective Investigation Committee Br Med J 1884;2:985.1 The Pathology of Acute Pneumonia Br Med J 1885;1:99.1 Pneumonic Fever, Old and New Br Med J 1889;1:1030.2 References Category:1833 births Category:1894 deaths Category:Medical doctors from London Category:Alumni of Emmanuel College, Cambridge Category:British paediatricians
</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.