221849
He has also acted for Conrad Black in various aspects of his civil cases and matters before the Ontario Securities Commission .
 person: Conrad Black; location: Ontario
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: Conrad Black, Ontario 
Answer:
 person: Conrad Black; location: Ontario