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.

[EX Q]: Elian's mother and 10 others died, but the boy survived by clinging to an inner tube. Elian's Miami relatives took in the child, but then refused to (return) him to his surviving father in Cuba, citing the harshness of the Castro regime.  
 Verb: return
[EX A]: Yes

[EX Q]: Iraq alleged Ritter was an American spy whose team had a disproportionately high number of Americans and Britons. The official Iraqi News Agency, which gives the daily tally of inspections, did not (mention) Ritter by name, but said Friday that team no.  
 Verb: mention
[EX A]: Yes

[EX Q]: " I'm happy that he feels positively about our company, " he said. Mr. Fabi would n't (say) directly whether Mr. Pattison has disclosed potential terms for his planned bid for control.  
 Verb: say
[EX A]:
Yes

