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.

[Q]: Gabelli Group began raising its Milton Roy stake in July, and holds 14.6 %, according to a recent SEC filing. It has n't (made) merger overtures to the board.
Verb: made
[A]: Yes

[Q]: StatesWest Airlines, Phoenix, Ariz., said it withdrew its offer to acquire Mesa Airlines because the Farmington, N.M., carrier did n't respond to its offer by the close of business yesterday, a deadline StatesWest had set for a response. However, StatesWest is n't (abandoning) its pursuit of the much-larger Mesa.
Verb: abandoning
[A]: Yes

[Q]: But sensitivities are so heightened from the shooting in western New York that it's even more powerful. David Eichenbaum, a Democratic political consultant who is not (working) for anyone in this year's campaign, said abortion is no longer the driving issue it once was, at least on the pro-choice side.
Verb: working
[A]:
Yes