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.

NATO warplanes helped end the war in Bosnia almost four years ago and now are poised to intervene in Yugoslavia should peace efforts in the province of Kosovo fail. A decade ago, the military planning of Poland, Hungary and the Czech Republic was (built) around the possibility of a ground assault toward the west.  
 Verb: built
No

Elian today is the symbol of our unity,  Castro said to cheers.  And our struggle will not (end) with the return of Elian,  added Castro.  
 Verb: end
Yes

Ironically, NATO's three newest members just a decade ago were still under the Soviet umbrella. Czech Foreign Minister Jan Kavan said he was in nearby Kansas City working with the anti-Soviet undergound in 1968 when Russian troops (swept) through Praque in the occupation of Czechoslovakia.  
 Verb: swept

No

