18444
This case concerned the MI5 double agent George Blake .
 organization: MI5; person: George Blake
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: MI5, George Blake 
Answer:
 organization: MI5; person: George Blake