52684
The AOA is headquartered in Chicago , Illinois , and is involved in post-graduate training for osteopathic physicians .
 location: Chicago , Illinois
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Chicago , Illinois 
Answer:
 location: Chicago , Illinois