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However following the acquisition of that building by property developers , the club relocated in 2005 to the Dalston Culture House in Gillett Street , N16 , where it is at the heart of the newly-created Gillett Square , one of mayor Ken Livingstone 's 100 public spaces for London .
 person: Ken Livingstone
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: Ken Livingstone 
Answer:
 person: Ken Livingstone