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The 2006 Pot Black professional non - ranking snooker tournament was held on 2 September 2006 at the Royal Automobile Club , London , England .
 organization: Royal Automobile Club; location: London
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: Royal Automobile Club, London 
Answer:
 organization: Royal Automobile Club; location: London