Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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: Yes
Reason: 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 instance: Of course, it is still far too early to assume that the military situation on the ground will stay as smooth for allied forces as it appears to have been so far. Iraq still has the potential to cause significant problems by using forces and weapons that do n't yet seem fully (engaged).
Verb: engaged
Student:
Yes