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: 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 solution: 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.

Problem: U.S. Secretary of State Madeleine Albright paid tribute Tuesday to bombing victims and embassy staffers on a whirlwind visit to East Africa, and promised to track down the perpetrators.  Together, we promise to bring to justice the murderers of our friends,  she (told) American and Tanzanian workers at the bomb-hit U.S. Embassy in Dar es Salaam, Tanzania.  
 Verb: told

Solution: No