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Graham also edited the pilot for the television program , House ( 2004 ) , which was also directed by Singer .
 person: Graham; person: Singer
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: Graham, Singer 
Answer:
 person: Graham; person: Singer