In the context of the input sentence, determine the relationship between 'George Osborne' and 'Chancellor of the Exchequer'.
Options: subsidiary, chief executive officer, location of formation, position held

Chancellor of the Exchequer George Osborne announced the appointment on Tuesday, saying Vlieghe is an economist of “outstanding ability.” BOE Governor Mark Carney endorsed that view, saying his “insight, judgment and perspective will be invaluable to the committee in the coming years.”
position held