21453
The American Dental Association asserts that regular brushing and proper flossing are enough in most cases , in addition to regular dental check-ups , although they approve many mouthwashes .
 organization: American Dental Association
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: American Dental Association 
Answer:
 organization: American Dental Association