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The 2011 12 season was  Arsenal Football Club  's 20th season in the Premier League and also marked the  club  's 125th anniversary .
 alternate names: Arsenal Football Club, club
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:  Arsenal Football Club, club 
Answer:
 alternate names: Arsenal Football Club, club