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Morrison claimed that the original idea for a flying disc toy came to him in 1937 , while throwing a popcorn can lid with his girlfriend , Lu , whom he later married .
 person: Morrison
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: Morrison 
Answer:
 person: Morrison