Detailed Instructions: 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.
See one example below:
Problem: 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: Yes
Explanation: This is a good example. Gonzalez refused to "claim" the boy. So, the claim didn't happen and it's a negation.

Problem: The U.S. team includes plastic surgeons with experience in physical reconstruction, and a psychiatrist who worked in Oklahoma City, where 168 people were killed in a bombing in 1995. The team planned to (leave) Nairobi on Thursday for Dar es Salaam.  
 Verb: leave
Solution:
No