We do not know exactly how the hijackers gained access to the cockpit; FAA rules required that the doors remain closed and locked during flight. Ong speculated that they had "jammed their way" in. Perhaps the terrorists stabbed the flight attendants to get a cockpit key, to force one of them to open the cockpit door, or to lure the captain or first officer out of the cockpit. Or the flight attendants may just have been in their way. At the same time or shortly thereafter, Atta-the only terrorist on board trained to fly a jet-would have moved to the cockpit from his business-class seat, possibly accompanied by Omari. As this was happening, passenger Daniel Lewin, who was seated in the row just behind Atta and Omari, was stabbed by one of the hijackers-probably Satam al Suqami, who was seated directly behind Lewin. Lewin had served four years as an officer in the Israeli military. He may have made an attempt to stop the hijackers in front of him, not realizing that another was sitting behind him. The hijackers quickly gained control and sprayed Mace, pepper spray, or some other irritant in the first-class cabin, in order to force the passengers and flight attendants toward the rear of the plane. They claimed they had a bomb. About five minutes after the hijacking began, Betty Ong contacted the American Airlines Southeastern Reservations Office in Cary, North Carolina, via an AT&T airphone to report an emergency aboard the flight. This was the first of several occasions on 9/11 when flight attendants took action outside the scope of their training, which emphasized that in a hijacking, they were to communicate with the cockpit crew. The emergency call lasted approximately 25 minutes, as Ong calmly and professionally relayed information about events taking place aboard the airplane to authorities on the ground. At 8:19, Ong reported:"The cockpit is not answering, somebody's stabbed in business class-and I think there's Mace-that we can't breathe-I don't know, I think we're getting hijacked." She then told of the stabbings of the two flight attendants. At 8:21, one of the American employees receiving Ong's call in North Carolina, Nydia Gonzalez, alerted the American Airlines operations center in Fort Worth, Texas, reaching Craig Marquis, the manager on duty. Marquis soon realized this was an emergency and instructed the airline's dispatcher responsible for the flight to contact the cockpit. At 8:23, the dispatcher tried unsuccessfully to contact the aircraft.

Question: "Who jammed their way into the plane's cockpit?"

OPTIONS:
- no
- yes

Answer: "The hijackers"

Response: yes

Mastermind Charlie Mascarenhas and his accomplice Riya are one of the greatest pair of thieves in India . A friend of Charlie , Raj is killed by the Russian mafia . At Raj's funeral , his wife hands Charlie a CD containing information about the transfer of gold by train from Russia to Romania . Charlie decides to rob the train with the help of imprisoned Don and con-artist Victor Braganza . They hire a team of criminals to join them in the robbery . The group includes Spider , who is a world-class hacker , an explosives expert Bilal Bashir , a prosthetic makeup artist Sunny , and an illusionist Ronnie . Charlie is also having an affair with Victor's daughter , Naina , who knows nothing about her father and Charlie's criminal activities . The group devise a plan to rob the Russian train in the sliest way possible . Spider hacks into a Russian satellite system and Ronnie uses his illusion to trick the soldiers guarding the gold while the rest of the team transfer the gold from the train . The robbery is executed successfully , however while celebrating Spider double crosses the gang and tries to flee with all of the gold . Spider is stopped by Ronnie , who is then shot multiple times by Spider's assassins . The group are chased by the assassins and Ronnie and Riya are killed . Charlie , Bilal and Sunny manage to escape after Spider blows up the location and flees with the gold . Charlie calls Victor to tell him about the betrayal , but Naina overhears the conversation . At the same time Spider's assassins breaks into the house and murder Victor .

Question: "What happens when Spider double-crosses the gang?"

Response: "He used his illusion to trick the soldiers guarding the gold"
OPTIONS:
- no
- yes

A: no

Problem: Our sun and other stars release light energy. At least this is what we see. Our Sun and stars also emit more than just light. Scientists call the type of energy that our Sun and stars release electromagnetic energy. This form of energy travels through space. Electromagnetic energy includes the light we see. It also includes much more. Many of these things we know about, but dont always think about. Electromagnetic energy includes radio waves, microwaves, and X rays. We now have devices in our homes and offices that release these same forms of energy. We use electromagnetic energy to make our lives better.

Question: "Where do radiowaves, come from?"

Answer: "Earth"

OPTIONS:
- no
- yes
Answer: no

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.

Question: "Approximately when did native Archaic Indians begin to develop a lasting hunting and gathering culture?"

OPTIONS:
- no
- yes

Answer: "23,000 b.c"

Response:
no