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: 'Barney Frank , Chairman of the House Financial Services Committee has stated that it 's time for Congress to release the restraints "impinging " on American citizens ' freedoms .', Argument/Subject 1: 'frank', Argument/Subject 2: 'financial service committee'
be chairman of