211188
A British agent ( Mason ) travels to Istanbul ( Stamboul ) to try and thwart a revolution .
 person: Mason; location: Istanbul
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: Mason, Istanbul 
Answer:
 person: Mason; location: Istanbul