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: 'Olson was one of four names forwarded to the Board by the Citizens Naming Committee , which had been appointed by the Board to winnow the 87 suggested names down to at least four names for the Board 's consideration .', Argument/Subject 1: 'committee', Argument/Subject 2: 'board'
be appoint by

Sentence: 'John returned from the United States at the request of the " King of Australian television " , Graham Kennedy , to co-host the top rating nightly Coast to Coast news program .', Argument/Subject 1: 'john', Argument/Subject 2: 'state'
return to

Sentence: 'Flickr has recently been acquired by Yahoo! Inc.', Argument/Subject 1: 'yahoo!', Argument/Subject 2: 'flickr'

acquire