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Stradling promoted Gerald from focus puller to operator , and in 1964 the two left together to become freelance .
 person: Stradling
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: Stradling 
Answer:
 person: Stradling