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Choosing to play with the Flames , Vail made his NHL debut in 1973 – 74 , appearing in 23 games .
 organization: Flames; person: Vail
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: Flames, Vail 
Answer:
 organization: Flames; person: Vail