Given the task definition and input, reply with output. 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.

Since the INS decision was announced Wednesday, they have said they will appeal the decision. Gonzalez has not (appeared) publicly since the announcement.  
 Verb: appeared

Yes