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".

Example Input: Comanche Indians have trapped the evil of their land in a monster made up of a mixture of other animals .  The Comanche have placed a protective spear in the ground to contain the evil .  A young boy pulls the spear from the ground while pocketing a rabbit foot talisman .  He starts to play with the spear .  A Comanche catches the boy , and startled , he runs away with the rabbit's foot .  The Native American places the spear back , realizing too late that the rabbits foot is now gone .  After that , white men come and start drilling for oil .  Skip to current time , a divorced father , Mance Cashen , moves to the area with his new wife , baby , and his son from his first marriage , Willy ( played by ( ( Chris Miller , who is visiting .  Willy notices something peculiar in the house and tries to warn his father and step-mother .  They do not believe him .  Willy is attacked while on a tire swing over a small water hole .  The creature grabs his foot and Willy struggles , eventually getting away .  He eventually befriends the local drunk , T. C. van Houten .  A nice old man with some bad memories who knows something about the evil near the oil well and was in a situation similar to Willy's .  In the meantime a Comanche Indian , Chief Sam John , comes to warn Mance of the evil and the need to keep it contained .  Sam John informs Mance the evil was originally intended to stop the white man , but it is indiscriminate in whom it kills instead .  Mance will have none of it .  Willy eventually takes a spear he finds on his property to Sam John and tries to find out what is going on . <sep>What did the Comanche Indians do to the monsters?<sep>The Comanche have placed a protective spear in the ground to contain the evil
Example Output: Yes

Example Input: Triumph and Disaster: The 20th century saw a stupendous release of energies that had been pent up for the 250 years of Tokugawa isolation. By 1930 raw-material production had tripled the figure of 1900, manufactured goods had increased twelve-fold, and heavy industry was galloping towards maturity. Britain led the World War I Ailies in large orders for munitions, while Japan expanded sales of manufactured goods to Asian and other markets cut off from their usual European suppliers. Merchant shipping doubled in size and increased its income ten-fold as the European fleets were destroyed. Setbacks in the 1930s caused by the European postwar slump were only a spur to redouble efforts by diversifying heavy industry into the machine-making, metallurgical, and chemical sectors. Even the terrible 1923 Tokyo earthquake, which cost over 100,000 lives and billions of dollars, provided another stimulus due to the construction boom that followed. Riding the crest of this economic upsurge were the zaibatsu conglomerates — a dozen family-run combines, each involved in mining, manufacturing, marketing, shipping, and banking. These tightly controlled commercial pyramids were the true heirs to the old feudal structures. Japan's progress toward parliamentary democracy was halted in the 1930s by the growing nationalism being imposed on government by the generals and admirals. They proclaimed Japan's mission to bring progress to its backward Asian neighbors in language not so very different from that of the Europeans in Africa or the US in Latin America. After the Russian Revolution of 1917, the Soviet Union was regarded as a major threat to Japan's security, and the army felt it needed Manchuria and whatever other Chinese territory it could control as a buffer against Russian advances. In 1931 the Japanese occupied Manchuria. And then in 1937, with the popular support of ultra-right-wing groups, the army overrode parliamentary resistance in Tokyo and went to war against the Chinese Nationalists. By 1938, they held Nanking, Hankow, and Canton. Japanese expansionist policies were leading to direct confrontation with the West. Japan hoped that war in Europe would divert the Soviet Union from interference in East Asia, giving Japan a free hand both in China and, through its alliance with Germany, in French IndoChina after the defeat of France. The US responded to the Japanese invasion of IndoChina with a trade and fuel embargo, cutting off 90 percent of Japan's supplies. The result was the attack on the American fleet at Pearl Harbor (7 December 1941) and total war. <sep>What event allowed the zaibatsu conglomerates to take advantage of an economic upsurge?<sep>The 1923 Tokyo earthquake
Example Output: Yes

Example Input: Gravity is a force, but not like other forces you may know. Gravity is a bit special. You know that a force is a push or pull. If you push a ball, it starts to roll. If you lift a book, it moves upward. Now, imagine you drop a ball. It falls to the ground. Can you see the force pulling it down? That is what makes gravity really cool. It is invisible. Invisible means you cannot see it. But wait, it has even more surprises. Gravity holds planets in place around the Sun. Gravity keeps the Moon from flying off into space. Gravity exerts a force on objects that are not even touching. In fact, gravity can act over very large distances. However, the force does get weaker the farther apart the objects are. <sep>What is gravity in charge of?<sep>Gravity holds planets in place around the Sun and keeps the Moon from flying off
Example Output:
Yes

