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

SOLUTION: Yes

PROBLEM: Sentence1: Based on having at least one of the symptoms , most students had been hung over between three and 11 times in the previous year ., Sentence2: On average the students suffered at least one of the 13 symptoms between three and 11 times in the last year .

SOLUTION: Yes

PROBLEM: Sentence1: Mr. Bankhead said the crime scenes indicated that the killer was " very methodical . ", Sentence2: GBI spokesman John Bankhead said the murder scenes showed that the killer was very methodical .

SOLUTION:
Yes