3960
On Tuesday , the great-grandson , William Clay Ford Jr. , stepped down as Ford 's chief executive and president , passing the reins to the Boeing executive Alan Mulally .
 person of company: Alan Mulally, Boeing
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:  Alan Mulally, Boeing 
Answer:
 person of company: Alan Mulally, Boeing