1346
Russia opposes NATO 's plans to take in countries of eastern and central Europe which used to be part of the Soviet-led Warsaw Pact , saying such moves would threaten its security .
 location: Europe; else: Soviet-led; else: Warsaw Pact; organization: NATO; location: Russia
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 location: Europe; else: Soviet-led; else: Warsaw Pact; organization: NATO; location: Russia