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:
Alexander earned the epithet "The Great" due to his unparalleled success as a military commander. He never lost a battle, despite typically being outnumbered. This was due to use of terrain, phalanx and cavalry tactics, bold strategy, and the fierce loyalty of his troops. The Macedonian phalanx, armed with the sarissa, a spear 6 metres (20 ft) long, had been developed and perfected by Philip II through rigorous training, and Alexander used its speed and maneuverability to great effect against larger but more disparate Persian forces. Alexander also recognized the potential for disunity among his diverse army, which employed various languages and weapons. He overcame this by being personally involved in battle, in the manner of a Macedonian king. In his first battle in Asia, at Granicus, Alexander used only a small part of his forces, perhaps 13,000 infantry with 5,000 cavalry, against a much larger Persian force of 40,000. Alexander placed the phalanx at the center and cavalry and archers on the wings, so that his line matched the length of the Persian cavalry line, about 3 km (1.86 mi). By contrast, the Persian infantry was stationed behind its cavalry. This ensured that Alexander would not be outflanked, while his phalanx, armed with long pikes, had a considerable advantage over the Persian's scimitars and javelins. Macedonian losses were negligible compared to those of the Persians. At Issus in 333 BC, his first confrontation with Darius, he used the same deployment, and again the central phalanx pushed through. Alexander personally led the charge in the center, routing the opposing army. At the decisive encounter with Darius at Gaugamela, Darius equipped his chariots with scythes on the wheels to break up the phalanx and equipped his cavalry with pikes. Alexander arranged a double phalanx, with the center advancing at an angle, parting when the chariots bore down and then reforming. The advance was successful and broke Darius' center, causing the latter to flee once again. When faced with opponents who used unfamiliar fighting techniques, such as in Central Asia and India, Alexander adapted his forces to his opponents' style. Thus, in Bactria and Sogdiana, Alexander successfully used his javelin throwers and archers to prevent outflanking movements, while massing his cavalry at the center. <sep>How did Alexander use the phalanx in the battle of Granicus?<sep>Armed with the sarissa

Ex Output:
No

Ex 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 is the name of the old man with whom Willy became friends?<sep>T. C. van Houten

Ex Output:
Yes

Ex Input:
Independence with Partition: The British began to see India's independence as inevitable; however, only a few seemed to understand the vital role of the religious groups. Britain prepared a parliamentary democracy with majority rule, but the majority were Hindusand Hindus, Muslims, and Sikhs had been killing each other in war for many centuries. Nehru's Congress Party, largely Hindu with a socialist leadership, wanted a parliamentary democracy. As counterweight, British legislation reserved parliamentary seats for religious minorities, but the Punjab and Bengal had such a complicated mixture of Hindus, Muslims, and Sikhs that it was not possible to avoid fights over how separate constituencies were to be formed. The seeds of future trouble were sown. The legislation on reserving seats gave the Muslims the basis for an alternative to an India in which they were only a quarter of the population: Partition. In 1930, the poet Muhammad Iqbal proposed a separate Muslim homeland in the northwest of India. A small group of Indian Muslims at Cambridge came up with the name Pakistan, using the initials of the Punjab, Afghania (N.W. Frontier Province), Kashmir, and Sind (at the same time producing the word pak, meaning "pure"), and adding "stan," the Persian suffix for the word "country. " The Muslim campaign for Partition was led by London-trained Bombay lawyer, Muhammad Ali Jinnah. Meanwhile, Gandhi vehemently opposed any dismemberment of the country, and tried to keep people united by fasting to uphold the spirit of love, and by focussing on the common adversary: the British. Advocating civil disobedience, he led his famous Salt March to the sea, to scoop up salt and circumvent the hated British salt tax. This put more than 60,000 in jail. Against this militancy, World War II did not elicit the solidarity of the first. Indians courageously fought alongside the British troops, in Burma, the Middle East, and Europe, but Gandhi saw the British as a provocation for Japanese invasion and was jailed yet again, for launching a "Quit India" campaign in the year 1942. Some anti-British extremists saw the Japanese as an Asian liberator. Winston Churchill didn't want any Indian independence and so it was probably as well for India that he was defeated by Attlee's Labor Party in 1945. With riots growing ever more bloody in Bengal, Bihar, and the Punjab, India's last viceroy, Lord Mountbatten, kept a mandate to make the British departure as quick and as smooth as possible. Quick it wassix months after his arrivalbut not smooth. <sep>In 1930, the poet Muhammad Iqbal proposed a separate Muslim homeland in the northwest of India. This proposal began the birth of what country?<sep>Pakistan

Ex Output:
Yes