6120
The swirl of history energizes Cadillac Records the chronicle of the rise and fall of Chicago's legendary  Chess  Records the 1950s music powerhouse that brought to prominence such stars as Muddy Waters Etta James and  Chuck Berry  .
 employee of: Chess, Chuck Berry
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  Chess, Chuck Berry 
Answer:
 employee of: Chess, Chuck Berry