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.
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Question: Sentence: 'The elected officers of the Society shall be a President , a Vice-President , a Secretary and a Treasurer .', Argument/Subject 1: 'president', Argument/Subject 2: 'society'

Answer: be officer of


Question: Sentence: 'Commissioner Gibson moved that the Board of County Commissioners go into Executive Session for negotiations as outlined in 24-6-402-C.R.S.', Argument/Subject 1: 'board', Argument/Subject 2: 'executive session'

Answer: move into


Question: Sentence: 'Sen. Joe Biden , as chairman of the Senate Foreign Relations Committee , has been holding up passage of the Wilberforce Reauthorization Act of 2008 , a bill that would strengthen the law against human trafficking .', Argument/Subject 1: 'biden', Argument/Subject 2: 'foreign relation committee'

Answer:
be chairman of