Definition: You will be given a context and a verb separated with a newline character, and you have to answer if the given verb can be anchored in time or not. We say a verb can be anchored in the real timeline if and only if a verb happened in the past, is happening now, or is guaranteed to happen in the future. The output should be "Yes" if the verb can be anchored in time and "No" otherwise.
Input: 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

Yes