450
The performers left the 28-member Shanghai Opera while the company was in San Francisco en route to Shanghai last week after a series of performances in the United States.
 Shanghai Opera, Shanghai
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
Answer:
 Shanghai Opera, Shanghai