100514
Some gun control advocates say that the strongest evidence linking availability of guns to death and injury is found in domestic violence studies , often referring to those by public health policy analyst Arthur Kellermann .
 person: Arthur Kellermann
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: Arthur Kellermann 
Answer:
 person: Arthur Kellermann