76998
Her husband was the youngest son of Charles Pratt , the founder of the Pratt Institute and a founder of the Standard Oil company , now Exxon .
 person: Charles Pratt; organization: Pratt Institute; organization: Standard Oil; organization: Exxon
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 Pratt, Pratt Institute, Standard Oil, Exxon 
Answer:
 person: Charles Pratt; organization: Pratt Institute; organization: Standard Oil; organization: Exxon