2518
This prize of the  University of Pittsburgh  Press in Pittsburgh Pennsylvania  USA  was initiated by Ed Ochester and developed by Frederick A. Hetzel .
 country of headquarters: University of Pittsburgh, USA
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:  University of Pittsburgh, USA 
Answer:
 country of headquarters: University of Pittsburgh, USA