4649
Chess Excellence Other than math , Rigel loves to play chess , winning multiple awards , including a load of awards with United States Chess Federation Music Excellence Rigel plays the violin , guitar , piano and many other instruments .
 Chess, United States Chess Federation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Chess, United States Chess Federation