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

question:
Sentence1: The Nikkei average ended trading down 1.83 percent at 10,310.04 , a four-week low ., Sentence2: The Nikkei average .N225 was down 1.83 percent or 192.25 points at 10,310.04 , its lowest close since August 28 .
answer:
Yes

question:
Sentence1: Shares of Berkeley , California-based Xoma dropped $ 1.49 or 27 percent , to $ 4 in Instinet trading ., Sentence2: Shares in Berkeley-based Xoma lost 77 cents , or 14 percent , to close at $ 4.72 each in trading on the Nasdaq Stock Market .
answer:
No