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Speaking at a panel discussion held by the Center for Strategic and International Studies in Washington on Monday , Rex W. Tillerson , the chairman of Exxon Mobil , said Western oil companies can help increase production because they bring unique technological skills . ''
 person of company: Rex W. Tillerson, Exxon Mobil
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 person of company: Rex W. Tillerson, Exxon Mobil