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His breakthrough role was the film noir " The Killers " in 1946 alongside Ava Gardner .
 person: Ava Gardner
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: Ava Gardner 
Answer:
 person: Ava Gardner