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The Barefoot Hikers of Minnesota were at Oxbow , an Olmsted County park with trails through wooded hills and along a river , for one of their regular get-togethers to challenge nature with feet au naturel .
 location contains: Minnesota, Olmsted County
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:  Minnesota, Olmsted County 
Answer:
 location contains: Minnesota, Olmsted County