7187
Clapton has organised the Crossroads Guitar Festival in 1999 , 2004 , 2007 , 2010 and 2013 to raise funds for this centre .
 Clapton
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Clapton