13994
As the game progresses , the player will be able to unlock an Aces campaign , where they will face off with advanced pilots from North Korea , Iraq , the Soviet Union , and the United States , the four countries the player visits while playing through the first four campaigns .
 location: North Korea; location: Iraq; location: Soviet Union; location: United States
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: North Korea, Iraq, Soviet Union, United States 
Answer:
 location: North Korea; location: Iraq; location: Soviet Union; location: United States