110074
History Professor Ouchi spent years researching Japanese companies and examining American companies using the Theory Z management styles .
 person: Ouchi
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: Ouchi 
Answer:
 person: Ouchi