In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

Ex Input:
Once upon a time I had a dog named Toodles. He was black and white and had long floppy ears. He also had very short legs, but really big paws. Every Saturday we would go to the park and play Toodles' favorite game. Toodles loved playing fetch. One Saturday, Toodles ran over to the pond because he saw ducks swimming there. He ran all around the pond, barking at the ducks. The ducks ignored him, and kept swimming. Toodles wasn't having it! He jumped into the pond and started swimming toward the ducks, chasing around his new playmates. One of the ducks, braver than the others, poked Toodles with his beak - and then bit him right on one of his floppy ears! Toodles barked and ran out of the pond because the duck hurt his ear. Soaking wet, he ran toward where I was eating a sandwich on the grass and curled right up in my lap so I could make him feel better. After that, whenever he would see a duck, Toodles would run the other way. <sep>What did the duck do that caused Toodles' ear to hurt?<sep>He tore it off

Ex Output:
No

Ex Input:
Also on Feb. 12, a week before the ice dancing finals, Tokhtakhounov told Anissina's mother in a telephone call that the Russian federation official "had called me from America" to assure that "we are going to make" Anissina "an Olympic champion." He told her that the Russian skating federation official "will help -- he has two or three judges." On or about March 7, in a conversation between Tokhtakhounov and Anissina, she said she would have won the event without his assistance because the Russian judge did not vote for her and her partner. She also apologized for not calling to thank him earlier, but that Gailhaguet had forbidden her. She told Tokhtakhounov that she knew the FBI had interviewed Gailhaguet because of information that Tokhtakhounov "was involved with the results" of the ice dancing. He assured her that it was nonsense, but that Gailhaguet "knows my name very well -- he tried to help me, and later he made stuff up to scare you so you would not connect me to him even more." The conversations seem to indicate a familiarity between Tokhtakhounov and Anissina. Tass, the official Russian news agency, reported that Anissina attended a ceremony in 1999 at a Paris hotel honoring Tokhtakhounov for his philanthropy. That Russian organized crime may have infiltrated international sport at the Olympics stunned Phyllis Howard, president of the U.S. Figure Skating Association. "This is a criminal act and it certainly puts things in a different league," Howard said. Lloyd Ward, chief executive officer of the U.S. Olympic Committee, said in a statement, "Competitors from all nations must be assured that they compete on a level playing field." <sep>Who is going to help making Anissina "an Olympic champion"?<sep>Tokhtakhounov

Ex Output:
Yes

Ex Input:
Alexander Sergeyevich Pushkin (/'pUSkIn/; Russian: Aleksandr Sergeevich Pushkin, tr. Aleksandr Sergeyevich Pushkin; IPA: [aljI'ksandr sjI'rgjejIvjItc 'puskjIn]; 6 June [O.S. 26 May] 1799 - 10 February [O.S. 29 January] 1837) was a Russian author of the Romantic era who is considered by many to be the greatest Russian poet and the founder of modern Russian literature. Pushkin was born into Russian nobility in Moscow. His matrilineal great grandfather was Abram Gannibal, who was brought over as a slave from what is now Cameroon. Pushkin published his first poem at the age of fifteen, and was widely recognized by the literary establishment by the time of his graduation from the Tsarskoye Selo Lyceum. While under the strict surveillance of the Tsar's political police and unable to publish, Pushkin wrote his most famous play, the drama Boris Godunov. His novel in verse, Eugene Onegin, was serialized between 1825 and 1832. Notoriously touchy about his honour, Pushkin fought as many as twenty-nine duels, and was fatally wounded in such an encounter with Georges-Charles de Heeckeren d'Anthes. Pushkin had accused D'Anthes, a French officer serving with the Chevalier Guard Regiment of attempting to seduce the poet's wife, Natalya Pushkina. <sep>Who did Pushkin kill to when fending off his wive's would be seducer?<sep>Georges-Charles de Heeckeren d'Anthes

Ex Output:
Yes