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.
One example: Only the government of the United States can decide if it prefers this variant, continued the letter, which Castro read on a state television station broadcast. Gonzalez for months refused requests by Elian's Miami relatives to go to the United States to (claim) the boy.  
 Verb: claim
Solution is here: Yes
Explanation: This is a good example. Gonzalez refused to "claim" the boy. So, the claim didn't happen and it's a negation.

Now, solve this: These bombings will not cause America to back down or retreat,  she declared. The head of the FBI investigation in Dar es Salaam, Kenneth Piernick, (said) the bureau has questioned more than 100 people there, but indicated that most of the interrogations had led nowhere.  
 Verb: said
Solution:
No