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A growing but still relatively obscure branch of the figure skating world , synchronized skating was introduced more than half a century ago , in Ann Arbor , Mich. , when the first team was organized to perform between periods at University of Michigan hockey games .
 location contains: Ann Arbor, University of Michigan
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:  Ann Arbor, University of Michigan 
Answer:
 location contains: Ann Arbor, University of Michigan