137886
A long time participant in the Canadian racing industry , Marshall served as Chairman of the Ontario Jockey Club and owned 1957 Canadian Horse of the Year , Hartney .
 organization: Ontario Jockey Club
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: Ontario Jockey Club 
Answer:
 organization: Ontario Jockey Club