202751
It was directed by Stephen Ives and the executive producer was Ken Burns .
 person: Stephen; person: Ken Burns
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: Stephen, Ken Burns 
Answer:
 person: Stephen; person: Ken Burns