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In North America , these included Norsk Hydro of Norway 's $ 2 billion purchase of EnCana 's assets in the Gulf of Mexico , Devon Energy 's sale of operations worth $ 1.1 billion in Canada and Occidental Petroleum 's acquisition of Texas-based assets from Exxon Mobil for $ 972 million .
 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