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.

Q: In a bit of television diplomacy, Iraq's deputy foreign minister responded from Baghdad in less than one hour, saying Washington would break international law by attacking without UN approval. The united states is not (authorized) to use force before going to the council.
Verb: authorized

A: Yes
****
Q: The search for Kopp was recently extended to Mexico. Meantime, FBI agents and Metropolitan Police officers (assigned) to a joint terrorism task force here scanned the crowd of anti-abortion protesters at the annual March for Life on Capitol Hill, because Kopp has been either a participant in or arrested at this march in each of the last three years, according to another law enforcement official,
Verb: assigned

A: No
****
Q: Contrary to other reports, the FBI and Kenyan police said Monday that a suspect who was returned from Pakistan had not admitted any role in the crimes or implicated anyone else after three days of questioning. Albright, arriving after a 16-hour flight, spent about five hours in Tanzania before (heading) to Nairobi in a small plane when an engine of the Boeing 747 she had flown in from Washington overheated.
Verb: heading

A:
No
****