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Researchers at Nationwide Children's Hospital in Columbus Ohio and  Carnegie Mellon University  in  Pittsburgh  analyzed data from the National Center for Injury Prevention and Control .
 city of headquarters: Carnegie Mellon University, Pittsburgh
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:  Carnegie Mellon University, Pittsburgh 
Answer:
 city of headquarters: Carnegie Mellon University, Pittsburgh