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TDRS-6 , known before launch as TDRS-F , is an American communications satellite which is operated by NASA as part of the Tracking and Data Relay Satellite System .
 location: American; organization: NASA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: American; organization: NASA