191713
In the summer of 2008 , Gonzalez organized " a kind of Hacienda Brothers farewell tour as a tribute to Gaffney , " with Dave Alvin as a featured guest for a show in San Francisco .
 Gonzalez, Gaffney, Dave Alvin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gonzalez, Gaffney, Dave Alvin