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.
"Why was Alexander considered a military leader of unparalleled success?" is "He never lost a battle"?

OPTIONS:
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- yes
Output: yes

Input: The inhabited history of the Las Vegas Valley stretches to 23,000 b.c. , when much of the area was covered by a prehistoric lake. During this period, the indigenous people lived in caves, hunting the mammals that gathered at the shoreline. The landscape of the valley changed dramatically over the next 200 centuries. The glaciers feeding the lake melted away and the lake evaporated. Fossils tell an obscure story of man's slow and sporadic development. Around 3000 b.c. , native Archaic Indians began to develop a lasting hunting and gathering culture. By this time, the valley was in much the same geographic state as it exists in today, with one exceptionthe presence of artesian springs that bubbled to the surface in several areas. These springs fed a network of streams draining through the Las Vegas Wash to the Colorado River. The areas surrounding the springs were desert oases: sprawling collections of grasses, trees, and wildlife. Many springs lay in areas that would eventually become the center of the modern Las Vegas metropolis. For about 4000 years, the Archaics thrived in a culture that included many signs of early civilization. Signs of even more advancement appeared halfway through the first millennium a.d. , when the Anasazi Indians inhabited the valley. Far more progressive than the Archaics, the Anasazi utilized such formal agricultural techniques as irrigation to assist their harvest. This permitted the Anasazi to achieve a benchmark of advanced societythe ability to live in permanent shelters year-round without need to follow wildlife. Mysteriously, the Anasazi vanished from the valley around a.d.

Does the response "Around 500 a.d" correctly answer the question "When did the Anasazi begin to inhabit the valley?"?

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***
Output: yes

Dick was enraged to see how contentedly the men bore the irksome confinement, the meager food, and harsh peremptoriness of the beardless boys set over them as guards. Most of the prisoners passed the time in cards, playing for buttons, trinkets, or what not that formed their scanty possessions. Dick learned that all the commissioned officers of the company with Wesley Boone had been wounded or killed in the charge near the stone bridge. Wesley had been with the prisoners at first. He had been struck on the head, and was in a raging fever when his father and sister came to the prison to take him away. No one could tell where he was now, but Dick knew that he must be in the city, since there were no exchanges, the Confederates allowing no one to leave the lines except women with the dead, or those who came from the North on special permits. Then he visited the provost headquarters, and was shown the complete list of names recorded in the books there; but Barney's was not among them. At the Spottswood Hotel, the day after his coming, he met Elisha Boone, haggard, depressed, almost despairing. Dick had no love for the hard-headed plutocrat, but he couldn't resist making himself known.

Question: "Had Wesley Boone been killed at the stone bridge?"

OPTIONS:
- no
- yes

Answer: "No"

Response: yes

Problem: Catherine V. "Ginny" Kilgore of Oxford, an attorney with North Mississippi Rural Legal Services, has been recognized for her dedication to serving the indigent. Kilgore - who oversees delivering legal services to the disabled and elderly in 39 north Mississippi counties - is recipient of the University of Mississippi School of Law's 2002 Public Service Award. The award was announced recently at a dinne r, held in Kilgore's honor and hosted by law school Dean Samuel M. Davis, who presented her with an engraved plaque. "Ginny Kilgore is a public servant in the truest sense," said Davis. "Her selection continues the tradition of this award in recognizing those who have labored in the trenches, with little or no compensation but with great professional and personal satisfaction in helping to bring justice and equality to those who need it most." "This award means a great deal to me," Kilgore said, pointing to others so honored. "The work of those who received the award before me has been so important; I feel very honored." After earning bachelor's and master's degrees in education and a few years teaching, Kilgore enrolled at the UM law school. Upon graduation in 1975, she entered private law practice in Oxford, joining NMRLS in 1978. Since then, she has earned promotions from managing attorney, senior attorney, then director of the Council on Aging project. Since 1990, she has worked in the Administrative Law Unit and Resource Development, and directed the Elder Law Project, serving the northern half of the state. She also is an adjunct professor in the UM law school's Civil Law Clinic. She held a similar post a few years ago in the school's Elder Law Clinic. Kilgore says she's found her niche. "I've always thought it was important to do work to help people. I really enjoy it. The issues I've dealt with through the years have been on the side of helping people maintain the basics of life - home, healt h care, jobs and family." She says her desire to serve others was sparked early, growing up in a single-parent home, aware that her widowed mother faced certain challenges as she supported her four children through public school and college.

Question: "Where is Kilgore's niche?"

Answer: "Legal services to the disabled and elderly"

OPTIONS:
- no
- yes
Answer:
yes