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.

Example input: 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
Example output: Yes
Example explanation: This is a good example. Gonzalez refused to "claim" the boy. So, the claim didn't happen and it's a negation.
Q: They refused to provide details. Media reports in Tanzania have (said) the ingredients for the bombs had originated in the Middle East and were transferred by sea via the Comoro Islands to Tanzania.  
 Verb: said
A:
No