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The Senate Banking Committee convenes hearing on electronic trading , expected to address dark pools . Watch LIVE : http://t.co/f7lZS47Vsx
 organization: Senate Banking Committee
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: Senate Banking Committee 
Answer:
 organization: Senate Banking Committee