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.

[Q]: 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'
[A]: be appoint by

[Q]: Sentence: 'The largest member of OPEC , Saudi Arabia , controls one-fifth of the world 's crude reserves and constitutes more than 10 percent of world daily production of crude oil , making it one of the most critical suppliers influencing this market .', Argument/Subject 1: 'saudus arabium', Argument/Subject 2: 'opec'
[A]: be member of

[Q]: Sentence: 'There are a lot of indigenous languages .... Whilst French is the official language of Central African Republic , S?ng ? .', Argument/Subject 1: 'french', Argument/Subject 2: 'republic'
[A]:
be language of