Detailed Instructions: 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.
Problem:Sentence: 'Benton was appointed by President Jimmy Carter as chairman of the National Commission on Libraries and Information Science and by President Bill Clinton as a member of the Presidential Advisory Committee on the Public Interest Obligation of Digital Television Broadcasters .', Argument/Subject 1: 'president', Argument/Subject 2: 'committee'
Solution:
be member of