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The first mention of the release of live material from the Volta tour was made through an announcement made on Björk 's official website regarding a " Live Session Album " made at the now-closed Olympic Studios .
 person: Björk
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: Björk 
Answer:
 person: Björk