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Remember that it took Mr. Mengistu many months , in what became known as the `` creeping coup , '' to topple Emperor Haile Selassie in 1974 and 1975 .
 person: Mengistu; date: many months; person: Haile Selassie; date: 1974; date: 1975
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: Mengistu, many months, Haile Selassie, 1974, 1975 
Answer:
 person: Mengistu; date: many months; person: Haile Selassie; date: 1974; date: 1975