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.
--------
Question: In the air, U.S. Air Force fliers say they have engaged in a little cat and mouse with Iraqi warplanes, which have retreated when weapons radar locks onto them. They do n't want to (play) with us, one U.S. crew chief said.
Verb: play

Answer: Yes

Question: The official said the hair was in a cap that authorities found very near the location from which the sniper is thought to have fired the rifle bullet that killed Slepian as he stood in the kitchen of his home in the Buffalo suburb of Amherst, N.Y. But The Buffalo News reported Friday that the hair was in a packet, with at least two bullets, that was found buried in the ground more than 50 feet from a tree where police (believe) the sniper stood and fired.
Verb: believe

Answer: No

Question: But the Memphis, Tenn., facility was n't to begin turning out product until 1993, so the decision may reveal a more pessimistic long-term outlook as well. Kellogg, which has n't been as successful in (capitalizing) on the public's health-oriented desire for oat bran as rival General Mills Inc., has been losing share in the $6 billion ready-to-eat cereal market.
Verb: capitalizing

Answer:
Yes