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The music hall began its start with candle lighting , however , it is said The Music Hall had its own gas plant behind the theatre , gas fixtures were placed all along the horseshoe balcony , and gaslight continued at the music hall until the advent of electricity arrived in July 1888 .
 None
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:  
Answer:
 None