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Briggs wrote two serials for Doctor Who , Dragonfire and The Curse of Fenric , both featuring Sylvester McCoy as the Seventh Doctor .
 person: Briggs; person: Sylvester McCoy
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: Briggs, Sylvester McCoy 
Answer:
 person: Briggs; person: Sylvester McCoy