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I think they can be a very serious player in this business , '' said Ellen Siminoff , chief executive of Efficient Frontier , a Mountain View , Calif. , company that helps its clients turn up higher on search sites . ''
 person of company: Ellen Siminoff, Efficient Frontier
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:  Ellen Siminoff, Efficient Frontier 
Answer:
 person of company: Ellen Siminoff, Efficient Frontier