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Last fall , a researcher at Carnegie Mellon University in Pittsburgh published a study of online extortion involving small and mediumsized businesses , saying that the Internets global reach had produced a profound change in the nature of crime , as the existence of information systems and networks now makes criminal acts possible that were not before , both in increased scope and ease .
 Pittsburgh, Carnegie Mellon University
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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} 
Answer:
 Pittsburgh, Carnegie Mellon University