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 AUFD is managed by an elected International Board of Trustees and Council members .', Argument/Subject 1: 'trustee', Argument/Subject 2: 'board'

Ex Output:
be elect by


Ex Input:
Sentence: 'ECONOMIC DEVELOPMENT HOUSING AUTHORITY BOARD - APPOINT STEVE GANDER AS COUNCIL REPRESENTATIVE TO FILL THE VACANCY CREATED BY THE RESIGNATION OF RON GALSTAD.', Argument/Subject 1: 'vacancy', Argument/Subject 2: 'board'

Ex Output:
be fill by


Ex Input:
Sentence: 'There 's very few things in life you ca n't outsource , " said retired Army general Barry McCaffrey , director of the White House Office of National Drug Control Policy .', Argument/Subject 1: 'mccaffrey', Argument/Subject 2: 'office of national drug control policy'

Ex Output:

be director of