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Initially the office of censor was limited to eighteen months by a law of the dictator Mamercus Aemilius Mamercinus ; and the office therefore was of less importance in the 5th and 4th centuries BC .
 person: Mamercus Aemilius Mamercinus
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Mamercus Aemilius Mamercinus 
Answer:
 person: Mamercus Aemilius Mamercinus