Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'It was in 1909 that William Howard Taft became the 27th president of the United States .', Argument/Subject 1: 'william howard taft', Argument/Subject 2: 'unite state'
be president of

Sentence: 'Manmohan Singh is sworn in Prime Minister heading a 68-member Ministry , the first-ever Congress-led coalition , United Progressive Alliance .', Argument/Subject 1: 'ministry', Argument/Subject 2: 'minister'
be head by

Sentence: 'Saskatchewan is the only jurisdiction to have two officers serve as President of the North American Wildlife Enforcement Officers Association , and is also one of only three jurisdictions to have hosted two annual NAWEOA conferences .', Argument/Subject 1: 'association', Argument/Subject 2: 'president'

have