10139
The widespread belief that he died a virgin has been commented on by writers such as mathematician Charles Hutton , economist John Maynard Keynes , and physicist Carl Sagan .
 person: Charles Hutton; person: John Maynard Keynes; person: Carl Sagan
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Charles Hutton, John Maynard Keynes, Carl Sagan 
Answer:
 person: Charles Hutton; person: John Maynard Keynes; person: Carl Sagan