Part 1. Definition
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.
Part 2. 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
Answer: Yes
Explanation: This is a good example. Gonzalez refused to "claim" the boy. So, the claim didn't happen and it's a negation.
Part 3. Exercise
( 0735 GMT ) Friday, toppling a crowded building toward the embassy and a street packed with cars, trucks and buses. At least 75 people were killed and 1,643 wounded there, Red Cross and ambulance officials (said).  
 Verb: said
Answer:
No