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John Singleton ( 1715-c .1795 ) , born Melbourne , near Pocklington , Yorkshire was an 18th century British jockey , who has been described as ' the pioneer of professional jockeys ' .
 location: Melbourne; location: Pocklington; location: Yorkshire
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Melbourne; location: Pocklington; location: Yorkshire