Detailed Instructions: 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.
Problem:Poland, Hungary and the Czech Republic today became full-fledged members of NATO, less than a decade after exchanging communist rule for democracy and shedding their Cold War military ties to the Soviet Union. Secretary of State Madeleine Albright accepted admission papers from the three countries' foreign ministers, (marking) their formal entry into the 50-year-old alliance.  
 Verb: marking
Solution:
No