You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".

[Q]: Sentence1: Wall Street regained a positive track yesterday after two of Saddam Hussein 's sons were killed in a firefight in Iraq ., Sentence2: WALL St regained a positive track today following news that two of Saddam Hussein 's sons were among four Iraqis killed in a US raid in northern Iraq .
[A]: Yes


[Q]: Sentence1: The tech-heavy Nasdaq Stock Market 's composite index rose 3.41 points to 1,915.31 ., Sentence2: The benchmark S & P / TSX composite index rose 29.12 points yesterday to 7,633.61 .
[A]: 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