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The Soviet Union , through its Intercosmos program , allowed people from other " socialist " ( i.e. Warsaw Pact and other Soviet-allied ) countries to fly on its missions , with the notable exceptions of France and Austria participating in Soyuz TM-7 and Soyuz TM-13 , respectively .
 Soviet Union, Warsaw Pact, France, Austria
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Soviet Union, Warsaw Pact, France, Austria