TASK DEFINITION: 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.
PROBLEM: The government exhorted citizens to keep up mass protests pressing for Elian's return until the boy comes home. We cannot (stop) mobilizing !
Verb: stop

SOLUTION: Yes

PROBLEM: Retaliating 13 days after the deadly embassy bombings in East Africa, U.S. forces Thursday launched cruise missile strikes against alleged terrorist camps in Afghanistan and a chemical plant in Sudan. Countries have the right to defend themselves and their citizens against terrorism and New Zealand (appreciates) and understands the steps the United States has taken, McKinnon said.
Verb: appreciates

SOLUTION: No

PROBLEM: She does not speak to her brother and has n't for several years. Nobody talks to Fidel, because he does n't (listen), Juanita Castro said.
Verb: listen

SOLUTION:
Yes