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Starring Clark Gable , Jeanette MacDonald and Spencer Tracy , it was the top-grossing film of the year .
 person: Clark Gable; person: Jeanette MacDonald; person: Spencer Tracy
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: Clark Gable, Jeanette MacDonald, Spencer Tracy 
Answer:
 person: Clark Gable; person: Jeanette MacDonald; person: Spencer Tracy