43742
He was at school and university with , among others , cricket commentator Brian Johnston and playwright William Douglas-Home .
 person: Brian Johnston; person: William Douglas-Home
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: Brian Johnston, William Douglas-Home 
Answer:
 person: Brian Johnston; person: William Douglas-Home