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: 'Colin Powell endorsed Obama because he 's black .', Argument/Subject 1: 'powell', Argument/Subject 2: 'obama'

Answer: endorse


Question: Sentence: 'Andros is the largest of the Bahama islands , lying on the western side of the U-shaped Great Bahama Bank .', Argument/Subject 1: 'andro', Argument/Subject 2: 'bahama'

Answer: be island in


Question: Sentence: 'The Executive Vice President will also serve as the chairman of the Finance Committee ( Rev.', Argument/Subject 1: 'president', Argument/Subject 2: 'committee'

Answer:
be chairman of