28408
The study , involving 36 patients at nine centers in the United States , Canada and Europe , was inspired by a smaller trial published in 2000 that sparked excitement about a transplant technique called the Edmonton protocol , developed at the University of Alberta .
 location contains: Canada, Edmonton; location contains: Edmonton, University of Alberta
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:  Canada, Edmonton; Edmonton, University of Alberta 
Answer:
 location contains: Canada, Edmonton; location contains: Edmonton, University of Alberta