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A survey this year of more than 60 emergency department directors by the Massachusetts College of Emergency Physicians found that more than 80 percent of them had been forced to divert ambulances and about 38 percent said they had seen ` ` adverse outcomes ' ' as a result of crowding .
 organization: emergency department; organization: the Massachusetts College of Emergency Physicians; person: more than 60 emergency department directors; person: more than 80 percent of them; person: them; person: about 38 percent; person: they; vehicle: ambulances
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: emergency department, the Massachusetts College of Emergency Physicians, more than 60 emergency department directors, more than 80 percent of them, them, about 38 percent, they, ambulances 
Answer:
 organization: emergency department; organization: the Massachusetts College of Emergency Physicians; person: more than 60 emergency department directors; person: more than 80 percent of them; person: them; person: about 38 percent; person: they; vehicle: ambulances