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: '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: 'Minerva is a town in Essex County , New York , USA....', Argument/Subject 1: 'minerva', Argument/Subject 2: 'essex county'
be town in

Sentence: 'A Chairman of the Board , and one or more Vice Chairmen may be elected or appointed by the Board of Directors from time to time .', Argument/Subject 1: 'chairman', Argument/Subject 2: 'board'

be elect by