    -Sentence 1:” The committee will define the role  of the. interim ‘chairman, and recommend ‘an’  individual ta fill that rote ,."-said lead director H.  Carl McCall in.a’statement..                     Sentence 2: " The committee will‘define the.role  of, the. interim chairman and: recommend: an  individuat to’ fill that role., “said: Carl McCall.  the lead director of the NYSE board.    