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.

Ex Input:
Sentence: 'Five years after the Vietnam War , a conservative , moral , rightwing Reagan could become the President of the United States .', Argument/Subject 1: 'reagan', Argument/Subject 2: 'unite state'

Ex Output:
be president of

Ex Input:
Sentence: 'He is Board certified by the American Board of Neurology and Psychiatry and has been elected as a fellow .', Argument/Subject 1: 'board', Argument/Subject 2: 'neurology'

Ex Output:
certify in

Ex Input:
Sentence: 'Lucca is a city in Tuscany , northern central Italy , situated on the river Serchio in a fertile plain near the Ligurian Sea .', Argument/Subject 1: 'lucca', Argument/Subject 2: 'tuscany'

Ex Output:
be city in