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: The naval interdiction force is part of an overall American strategy that officials say is designed to leave the Iraqi leader with only the stark choice of backing out of Kuwait or launching new attacks to change his situation. Though they insist they are n't (trying) to lure Saddam Hussein into an attack, officials hope that if he strikes again, the U.S. and its allies will have such an impressive force in place in Saudi Arabia that they will be able to crush him in retaliation.
Verb: trying
A:
Yes