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Masters champions are automatically invited to play in the other three majors ( the U.S. Open , the Open Championship ( British Open ) , and the PGA Championship ) for the next five years , and earn a lifetime invitation to the Masters .
 PGA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 PGA