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.

Example Input: Elian should be with his father. His sincerity did n't (stop) the talk on Little Havana's streets or on Miami's ubiquitous Spanish-language radio stations, which buzzed with callers lambasting Gonzalez for playing into the hands of a tyrant.
Verb: stop
Example Output: Yes

Example Input: In a filing with the Securities and Exchange Commission, DPC Acquisition said it expects it will need about $215 million to buy the shares and pay related fees and expenses. DPC Acquisition added that it has not (begun) discussions with financing sources, and said it expected to repay the amounts borrowed through proceeds of the liquidation.
Verb: begun
Example Output: Yes

Example Input: In a bit of television diplomacy, Iraq's deputy foreign minister responded from Baghdad in less than one hour, saying Washington would break international law by attacking without UN approval. The united states is not (authorized) to use force before going to the council.
Verb: authorized
Example Output:
Yes