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".

Input: Consider Input: As for engravings, Durer's work was restricted to portraits and illustrations for his treatise. The portraits include Cardinal-Elector Albert of Mainz; Frederick the Wise, elector of Saxony; the humanist scholar Willibald Pirckheimer; Philipp Melanchthon, and Erasmus of Rotterdam. For those of the Cardinal, Melanchthon, and Durer's final major work, a drawn portrait of the Nuremberg patrician Ulrich Starck, Durer depicted the sitters in profile, perhaps reflecting a more mathematical approach. Despite complaining of his lack of a formal classical education, Durer was greatly interested in intellectual matters and learned much from his boyhood friend Willibald Pirckheimer, whom he no doubt consulted on the content of many of his images. He also derived great satisfaction from his friendships and correspondence with Erasmus and other scholars. Durer succeeded in producing two books during his lifetime. "The Four Books on Measurement" were published at Nuremberg in 1525 and was the first book for adults on mathematics in German, as well as being cited later by Galileo and Kepler. The other, a work on city fortifications, was published in 1527. "The Four Books on Human Proportion" were published posthumously, shortly after his death in 1528. <sep>Whom did Durer both draw a porter of and consult with?<sep>Willibald Pirckheimer

Output: Yes


Input: Consider Input: (OPRAH.com) -- Chris Rock is an Emmy-winning comedian, devoted husband and loving father --but it's time to get to know a new side of this funnyman. Meet Chris Rock, hair expert. It's a detour he took after an innocent carpool ride left Rock with an idea he just couldn't shake. "I was with my daughter one day, and we're in the car and she's with one of her friends in the back seat, a little white friend," he says. "She was just kind of raving about her friend's hair a little too much for my comfort [saying]: 'You've got great hair. Oh, your hair's so good.'" Not wanting to make her comments a big deal, Rock says he tried to play his them off. "[I said]: "Oh, baby, your hair's beautiful. Come on,'" he says. "If I would have really reacted, then she would have a complex about her hair." Still, Rock couldn't let it go. "It sparked something in me," he says. Oprah.com: Oprah's hair throughout the years! What Rock discovered is a $9 billion industry that affects the daily activities, wallets, self-esteem -- and even the sex lives -- of black women. Because women spend so much time and money on their hair, Rock says men are forced to adopt a hands-off policy. "You cannot touch a black woman's hair. You are conditioned not to even go there," he says. "When I was a dating guy, I dated women from different races. Anytime I was with an Asian or a Puerto Rican girl or a white girl, my hands would constantly be in their hair. <sep>Which women do not allow men to touch their hair, according to Chris Rock?<sep>White women

Output: No


Input: Consider Input: In 2415 , after a virus in 2011 wiped out 99 % of the Earth's population , all of the survivors inhabit Bregna , a walled city-state , Which is ruled by a congress of scientists .  Although Bregna is idyllic , people are routinely disappearing and everyone is suffering from bad dreams .  on Flux is a member of the ` Monicans ' , an underground rebel organization who communicate through telepathy-enabling technology and are led by The Handler .  After a mission to destroy a surveillance station , on comes home to find her sister Una has been killed for being mistaken for a Monican .  When on is sent on a mission to kill the government's leader , Trevor Goodchild , she discovers that both she and the Monicans are being manipulated by council members in a secret coup .  This discovery causes on to question the origins of everyone in Bregna ; and in particular , her own personal connection to Trevor .  It turns out that everyone in Bregna is actually a clone , grown from recycled DNA .  With the dead constantly being reborn into new individuals and still bearing partial memories of their previous lives , there has been an increase in the troubling dreams .  Recycling and cloning became necessary since the original viral antidote made humans infertile .  Trevor's ongoing experiments , as with all his clone ancestors , has been trying to reverse the infertility .  on learns that she is a clone of the original Trevor's wife , Katherine and is the first Katherine clone in over 400 years .  One of Trevor's experiments , Una , was successful as she became pregnant . <sep>Why was recycling and cloning of humans necessary and what was the negative effect of this?<sep>Virus- they had few humans left


Output: No


