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Like the rest of Petre 's horses , Rowton was trained by John Scott , who sent out the winners of 41 classics , from his Whitewall Stables at Malton in North Yorkshire .
 Petre, John Scott, Malton, North Yorkshire
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Petre, John Scott, Malton, North Yorkshire