21566
Mr. Boyd said he later attributed General Hayden 's writing and reasoning ability to his Roman Catholic education in Pittsburgh parochial schools and at Duquesne University .
 location contains: Pittsburgh, Duquesne University
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Pittsburgh, Duquesne University 
Answer:
 location contains: Pittsburgh, Duquesne University