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 raid was necessary because the Gonzalez relatives in Miami, refusing to return the boy, made him into a symbol of resistance to Fidel Castro. Elian printed his name on an application for asylum and was put in front of a video camera to say that he did not want to (go) back to Cuba.
Verb: go

SOLUTION: Yes

PROBLEM: In a bit of television diplomacy, Iraq's deputy foreign minister responded from Baghdad in less than one hour, saying Washington would break international law by attacking without UN approval. The united states is not (authorized) to use force before going to the council.
Verb: authorized

SOLUTION: Yes

PROBLEM: But many Russians -- and some Americans -- are wary about the eastward encroachment of NATO. Former Soviet leader Mikhail Gorbachev (says) the push east signifies a rejection of the common European security system that was discussed at the end of the Cold War.
Verb: says

SOLUTION:
No