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She found the songs challenging , but was allowed to film her scenes lip-synching to her own vocals and was led to believe that these versions would be used , although music supervisors Saul Chaplin and Johnny Green had already decided to use Marni Nixon 's voice .
 person: Saul Chaplin; person: Johnny Green; person: Marni Nixon
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: Saul Chaplin, Johnny Green, Marni Nixon 
Answer:
 person: Saul Chaplin; person: Johnny Green; person: Marni Nixon