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: With Castro and other historic revolutionary leaders sitting in the front row of Havana's Conventions Palace, a string of former guerrillas called for the return of our Elian to his father on the communist island. Gonzalez had written a letter earlier this week to Attorney General Janet Reno, demanding Elian be returned to him and saying he did not (recognize) the courts hearing the custody battle.
Verb: recognize
Example Output: Yes

Example Input: They believe Kopp was driven to Mexico by a female friend after the shooting, and have a trail of her credit card receipts leading to Mexico, the federal officials have said. In addition, a Customs Service videotape from a border crossing point shows the woman's car (returning) from Mexico, these officials said.
Verb: returning
Example Output: No

Example Input: Intelogic Trace Inc., San Antonio, Texas, said it bought 2.7 million shares, or about 18 %, of its common stock from an unaffiliated shareholder for $3.625 a share, or $9.9 million. The move boosts Intelogic Chairman Asher Edelman's stake to 20 % from 16.2 % and may help prevent Martin Ackerman from (making) a run at the computer-services concern.
Verb: making
Example Output:
Yes