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From Autumn 1954 to the end of 1957 Goffman was a visiting member of the Laboratory of Socio-environmental Studies of the  National Institute of Mental Health  in  Bethesda  Maryland and did some brief studies of ward behavior in the National Institutes of Health Clinical Center .
 city of headquarters: National Institute of Mental Health, Bethesda
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 city of headquarters: National Institute of Mental Health, Bethesda