53489
Mr. Whitehead said last week in an op-ed article in The Wall Street Journal that he had received a threatening call from Mr. Spitzer days after an op-ed article in April in which Mr. Whitehead attacked Mr. Spitzer for making fraud accusations against Maurice R. Greenberg , the former chief executive of American International Group .
 company major shareholders: American International Group, Maurice R. Greenberg; company shareholder among major shareholders: Maurice R. Greenberg, American International Group
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:  American International Group, Maurice R. Greenberg; Maurice R. Greenberg, American International Group 
Answer:
 company major shareholders: American International Group, Maurice R. Greenberg; company shareholder among major shareholders: Maurice R. Greenberg, American International Group