6793
After spending several months in Los Angeles  Cocker  returned home to  Sheffield  where his family became increasingly concerned with his deteriorating physical and mental health .
 cities of residence: Cocker, Sheffield
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:  Cocker, Sheffield 
Answer:
 cities of residence: Cocker, Sheffield