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During these negotiations , completed on 8 September 1927 , the Ministry of Transport put pressure on Messerschmitt to produce military aircraft .
 person: Messerschmitt
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: Messerschmitt 
Answer:
 person: Messerschmitt