Given the task definition and input, reply with output. 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: 'The Section is presided over by the President of the Review Board , one of the Deputy Chairmen , or a member of the Committee empowered to do so by the President , and includes at least two other members chosen in turn by the President of the Review Board among Board members with specific expertise in the matters at hand .', Argument/Subject 1: 'president', Argument/Subject 2: 'board'
be member of