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.
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Question: Gonzalez has not appeared publicly since the announcement. Neither he nor Elian's four grandparents could be (located) in their hometown of Cardenas, east of Havana.
Verb: located

Answer: Yes

Question: There are not huge waiting uh disparit - waiting time disparities amongst the very uh sickest patients. It's between two to six days for every one uh of the sickest patients across the country. um So it's a - it's a fallacy that they're doing this because um the sickest patients are n't being (served).
Verb: served

Answer: Yes

Question: 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: spent

Answer:
No