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The hypothesis was first formulated by Roger Penrose in 1969 , and it is not stated in a completely formal way .
 person: Roger Penrose
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: Roger Penrose 
Answer:
 person: Roger Penrose