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The leading trainer at the 1941 Santa Anita Park winter meeting , on February 6 he became the first trainer to saddle four winners on a single racecard at Santa Anita , a record that as of 2009 has been tied but never broken .
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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:  
Answer:
 None