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: 'Petco Park , the stunning new home of the San Diego Padres , is 3.90 miles or 9 minutes away .', Argument/Subject 1: 'petco park', Argument/Subject 2: 'san diego padre'

Ex Output:
be home of

Ex Input:
Sentence: 'William Jefferson Clinton was the 42nd president of the United States .', Argument/Subject 1: 'william jefferson clinton', Argument/Subject 2: 'unite state'

Ex Output:
be president of

Ex Input:
Sentence: 'The Executive Director shall be appointed by and serve at the pleasure of the Board .', Argument/Subject 1: 'executive director', Argument/Subject 2: 'board'

Ex Output:
be appoint by