Q: 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.
Albright told the foreign minister the American people share in the profound sorrow of the Tanzanians and said the United States will maintain its presence throughout Africa and throughout the world.  These bombings will not cause America to back down or (retreat),  she declared.  
 Verb: retreat
A:
Yes