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The 2013 Laurence Olivier Award s were held on Sunday 28 April 2013 at the Royal Opera House , London .
 organization: Royal Opera House
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 Opera House 
Answer:
 organization: Royal Opera House