11473
Cheap Trick  bassist  Tom Petersson  had recently left the band so Tony Levin played bass .
 Cheap Trick, Tom Petersson
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 Cheap Trick, Tom Petersson