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He won 33 Group or Grade 1 races , including the 1981 Washington , D.C. International Stakes aboard Providential for trainer Charlie Whittingham .
 person: Charlie Whittingham
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: Charlie Whittingham 
Answer:
 person: Charlie Whittingham