156955
It contains two complete concerts : one from December 20 , 1969 , at the Fillmore Auditorium in San Francisco and the second from February 2 , 1970 , at the Fox Theatre in St. Louis .
 San Francisco, St. Louis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 San Francisco, St. Louis