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In 2010 they sang for the first time at St. George 's Chapel , Windsor Castle and King 's College Chapel , Cambridge and in September 2011 they sang at St Paul 's Cathedral .
 organization: St. George 's Chapel , Windsor Castle; organization: King 's College Chapel , Cambridge; organization: St Paul 's Cathedral
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:
 organization: St. George 's Chapel , Windsor Castle; organization: King 's College Chapel , Cambridge; organization: St Paul 's Cathedral