288213
Marshall Efron ( born 1938 ) is an American humorist originally known for his work on the listener-sponsored Pacifica radio stations WBAI New York and KPFK Los Angeles , and later for the PBS television show The Great American Dream Machine ( the original showcase of Chevy Chase ) .
 person: Marshall Efron; organization: Pacifica; organization: PBS; person: Chevy Chase
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: Marshall Efron, Pacifica, PBS, Chevy Chase 
Answer:
 person: Marshall Efron; organization: Pacifica; organization: PBS; person: Chevy Chase