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: ISC and NASCAR officials declined to comment ., Sentence2: NASCAR officials could not be reached for comment Tuesday .
answer:
No

question:
Sentence1: The U.S. government and private technology experts warned Wednesday that hackers plan to attack thousands of Web sites Sunday in a loosely co-ordinated " contest " that could disrupt Internet traffic ., Sentence2: THE US government and private technology experts have warned that hackers plan to attack thousands of websites on Sunday in a loosely co-ordinated " contest " that could disrupt Internet traffic .
answer:
Yes

question:
Sentence1: The Chelsea defender Marcel Desailly has been the latest to speak out ., Sentence2: Marcel Desailly , the France captain and Chelsea defender , believes the latter is true .
answer:
No