Sentence 1: Mark Wiseman was the CEO of the Canada Pension Plan Investment Board, which was replaced in June 2016 by Mark Machin. Sentence 2: Mark Machin was the CEO of the Canada Pension Plan Investment Board. <unk> <unk> <unk> <unk> Question: Do sentence 1 and sentence 2 express the same meaning? - Yes or No? - Yes or No?
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