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Elsewhere , among mountain bikers in Scotland , Australia and throughout North America , North Shore biking is synonymous with Canada 's storied West Coast trails , and the technical riding developed here , with steep drops and built structures like wooden ladders , teeter-totters , roller coasters and skinnies , high narrow rails suspended over obstacles . ''
 location contains: North America, Canada
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:  North America, Canada 
Answer:
 location contains: North America, Canada