6490
He hired cinematographer Sam Leavitt as director of photography , Herschel Burke Gilbert as musical director , and Herbert Ross as choreographer and began to scout locations .
 person: Sam Leavitt; person: Herschel Burke Gilbert; person: Herbert Ross
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Sam Leavitt, Herschel Burke Gilbert, Herbert Ross 
Answer:
 person: Sam Leavitt; person: Herschel Burke Gilbert; person: Herbert Ross