14113
He helped to initiate the first independent legal political organizations and became prominent in the Soviet Union 's growing political opposition .
 location: Soviet Union
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: Soviet Union 
Answer:
 location: Soviet Union