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University  Hayes  and Orton Halls are three historic buildings on the Oval at the Ohio State University in Columbus  Ohio  .
 employee of: Hayes, Ohio
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:  Hayes, Ohio 
Answer:
 employee of: Hayes, Ohio