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Michael Mason , a lobbyist with the American Petroleum Institute , told the news conference that his oil industry trade group believes the proposal to be ` ` a big mistake ' ' because ` ` there should be a level playing field in which all fuels should be able to compete. ' '
 Work for: Michael Mason, American Petroleum Institute
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: Organization based in, Located in, Live in, Work for, Kill 
Text: {0} 
 Entity Pairs:  Michael Mason, American Petroleum Institute 
Answer:
 Work for: Michael Mason, American Petroleum Institute