You will be given a context and a verb separated with a newline character, and you have to answer if the given verb is a negation or not. A verb is a negation if it is not going to exist, not happen, or has no effect. The output should be "Yes" if the verb is a negation and "No" otherwise.

[EX Q]: " I cannot detail or characterize the type of evidence we have gathered in Nairobi. " He said he cannot (confirm) there is any evidence linking the bomb blasts at the U.S. embassies in Kenya and Tanzania to the Saudi millionaire and the allegedly main sponsor of anti-U.S. terrorism, Osama Bin Laden, who now lives in Afghanistan.
Verb: confirm
[EX A]: Yes

[EX Q]: Had the relatives allowed Elian to return to Cuba, they would have denied the dictator an opportunity to reenergize support for his regime. Juan Miguel Gonzalez apparently is a Castro supporter, but that should not (disqualify) him from being reunited with his child.
Verb: disqualify
[EX A]: Yes

[EX Q]: This appears to have been a very well-coordinated, very well-planned attack _ clearly not the work of amateurs, U.S. National Security Council spokesman P.J. Crowley said in Washington. No one has (claimed) responsibility.
Verb: claimed
[EX A]:
Yes