Detailed Instructions: 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: 'The Chairman is responsible for supervising the functions and performance of the Board , while the Deputy Chairman cum Chief Executive Officer is responsible for the management of the businesses of the Group.More than one third of the members of the Board are independent non-executive directors , which exceeds the minimum requirement of the Listing Rules .', Argument/Subject 1: 'director', Argument/Subject 2: 'board'
A:
be member of