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The Unified S-band ( USB ) system was a tracking and communication system developed for the Apollo program by NASA and the Jet Propulsion Laboratory ( JPL ) .
 NASA, Jet Propulsion Laboratory
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 NASA, Jet Propulsion Laboratory