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Toru Iwaya  returned to  Koriyama  Japan in 1999 due to his wife's deteriorating health and his sister's mental illness .
 cities of residence: Toru Iwaya, Koriyama
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:  Toru Iwaya, Koriyama 
Answer:
 cities of residence: Toru Iwaya, Koriyama