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: 'The largest member of OPEC , Saudi Arabia , controls one-fifth of the world 's crude reserves and constitutes more than 10 percent of world daily production of crude oil , making it one of the most critical suppliers influencing this market .', Argument/Subject 1: 'saudus arabium', Argument/Subject 2: 'opec'

Ex Output:
be member of

Ex Input:
Sentence: 'By picking Obama over Hillary Clinton during the primaries , Democratic voters seemed to indicate a desire to move away from arguments about culture war and identity politics .', Argument/Subject 1: 'clinton', Argument/Subject 2: 'obama'

Ex Output:
pick

Ex Input:
Sentence: 'Paper presented at the U.S.-German Conference on Research on Exchanges , Bonn , West Germany .', Argument/Subject 1: 'paper', Argument/Subject 2: 'conference'

Ex Output:
present at