336891
Synopsis It is 1984 , fifteen years since the nuclear war between the United States and the Soviet Union devastated the entire northern half of the planet Earth , and now nuclear scientists Professor Doctor Lee Richardson and Comrade Professor Alexis Petrovitch Pitov are working together on a project in Argentina .
 location: United States; location: Soviet Union; location: Argentina
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: United States, Soviet Union, Argentina 
Answer:
 location: United States; location: Soviet Union; location: Argentina