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While Mr. Knight has had conversations with Laurence D. Fink , the chief executive of BlackRock , and Robert E. Diamond Jr. , the president of Barclays , people briefed on the search say that he and the board are now focusing on Mr. Mack as the best chance to unify Morgan Stanley , given his experience at the firm .
 person of company: Laurence D. Fink, BlackRock
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: Laurence D. Fink, BlackRock