Detailed Instructions: You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".
Q: Sentence1: Dan Powers , vice president of grid computing strategy at IBM Corp. , says he 's not worried about such off-the-shelf PC clusters threatening sales of traditional supercomputers ., Sentence2: Dan Powers , IBM vice president of grid-computing strategy , says he 's not worried about off-the-shelf PC clusters threatening traditional supercomputer sales .
A:
Yes