96764
Its first director was David Astor , editor and proprietor of The Observer newspaper at the time .
 person: David Astor; organization: The Observer
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: David Astor, The Observer 
Answer:
 person: David Astor; organization: The Observer