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

Example Input: Sentence1: U.S. corporate bond yield spreads tightened in spotty trading on Friday as Wall Street labored to get back on its feet after the largest power outage ever in North America ., Sentence2: U.S. stocks rose slightly on feather-light volume on Friday , as Wall Street regrouped after the biggest-ever power outage in North America .
Example Output: Yes

Example Input: Sentence1: The companies also announced plans to collaborate on the design for future generations of memory technologies ., Sentence2: The two groups said they would collaborate on the design of future memory technologies .
Example Output: Yes

Example Input: Sentence1: A Trillian representative did not return an e-mail requesting comment ., Sentence2: The representative did not return calls seeking additional comment .
Example Output:
Yes