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Test pilot and combat veteran Marrett was selected to attend the Aerospace Research Pilot School ( ARPS ) , now called the U.S. Air Force Test Pilot School at Edwards Air Force Base , California .
 Test, Marrett, Pilot, U.S. Air Force Test Pilot School, California
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Test, Marrett, Pilot, U.S. Air Force Test Pilot School, California