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Mr. Ewing is a consultant based in Winchester , Mass. , and author of `` Justice on the Job : Resolving Grievances in the Nonunion Workplace '' ( Harvard Business School Press , 1989 ) .
 person: Ewing; geographical social political: Winchester; geographical social political: Mass.; work of art: Justice on the Job : Resolving Grievances in the Nonunion Workplace; organization: Harvard Business School Press; date: 1989
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
 Entities: Ewing, Winchester, Mass., Justice on the Job : Resolving Grievances in the Nonunion Workplace, Harvard Business School Press, 1989 
Answer:
 person: Ewing; geographical social political: Winchester; geographical social political: Mass.; work of art: Justice on the Job : Resolving Grievances in the Nonunion Workplace; organization: Harvard Business School Press; date: 1989