instruction:
Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.
question:
Context: The Jack Sport was a French automobile manufactured from 1925 until 1930. 
 Question: What year was the end of Jack Sport?
answer:
1930


question:
Context: Jack Elgin is the European editor of The Economist, which is based in London, England. Jack has a wife named Maria and three kids named Joanne, Julia, and Andrew. Jack subtly changes the family vacation from a lazy week of Mediterranean fun and sun in Corfu, Greece, to a tour of India, because of a story he has to cover. Maria is not as impressed by this as the kids are. Jack himself envisioned a chance to simultaneously work an easy reporting assignment and spend a little quality time with his family. But on the way to India, the airplane, a 747 owned by AM Air, an American airline, makes an unscheduled stopover in Limassol Cyprus, because of a mechanical problem. After a while of waiting inside the Limassol airport, everyone gets back on the plane -- which is then hijacked by a group of terrorists known as the August 15th Movement, led by a Serbian man named Ivanic Loyvek and his right-hand man Karadan Maldic. The terrorists take a silver briefcase from an diplomatic courier, an older man, and it appears to be an important object of their hijack. And they are demanding $50,000,000 from the US State Department in one hour, or everyone on the airplane will die.The demand is met, and Loyvek and Maldic start releasing the women and children, with the men to go last. But as soon as a front passenger door is opened, the local police begins shooting. Inside the plane, the owner of the briefcase retrieves it, only to be killed the terrorists, who take it again.The flight attendants frantically open the rest of the airplane's doors and start getting passengers out, but the terrorists start killing passengers, leading to an explosion. Maria, Joanne, and Julia get out of the airplane, and then Jack, holding Andrew, gets out -- only to watch Maria, Joanne, and Julia get shot by the terrorists. Jack tries to hide Andrew's face so he can't see. Maria and Joanne are killed, but Julia burns to death while crying for help.Jack and Andrew survive. 15 passengers die, and Loyvek and Maldic, the surviving terrorists, escape, knowing that they now have the $50,000,000. Back in London, a devastated Jack is told that the terrorists were captured, but they were released and deported secretly, with no charges and no arrest, the result of some awfully compromised politics. Jack is understandably enraged that Loyvek and Maldic got off scot-free. While helping Andrew cope, Jack tries all the legal ways to ensure justice for his family, but to no avail.Jack even pays a visit to Henry Davidson, a CIA agent who works at the American Embassy in London. Davidson tells Jack that there's little that can be done. The American and British governments are completely impotent when it comes to going after Loyvek and Maldic. Jack decides he has no choice in the matter but to seek revenge. With the help of his ex-intelligence operative friend Kate Stockton, who is well-schooled in the finer points of international intelligence, Jack becomes a one-man anti-terrorist squadron, searching for Loyvek and Maldich. He finds a warehouse they apparently are using as a headquarters. Breaking in, he finds some papers which he takes, and some weapons. The terrorists return, find a flashlight Jack was using, and begin searching the warehouse. Jack returns upstairs, retrieves a machine pistol and loads it with a magazine. He kills three terrorists before escaping.He later breaks into the home of a friend at MI6 and steals a Walther PPK pistol from his home. He shows up at a theatre and makes a scene at the bar, to be sure he is noticed by the bartender. He then follows one of the terrorists in his taxicab, killing him with that weapon. He returns to the theatre and makes a point of apologizing to the bartender. The next day he goes pheasant hunting with his MI6 contact in case he is tested for gunpowder residue.Dogging Jack's trail is FBI agent Jules Bernard, who's cooperating with Scotland Yard on anti-terrorist activities, and who suspects 
 Question: Who is Jack's wife?
answer:
maria


question:
Context: An electromagnetic wave is a wave that consists of vibrating electric and magnetic fields. A familiar example will help you understand the fields that make up an electromagnetic wave. Think about a common bar magnet. It exerts magnetic force in an area surrounding it, called the magnetic field. You can see the magnetic field of a bar magnet in Figure 21.1. Because of this force field, a magnet can exert force on objects without touching them. They just have to be in its magnetic field. An electric field is similar to a magnetic field (see Figure 21.1). An electric field is an area of electrical force surrounding a charged particle. Like a magnetic field, an electric field can exert force on objects over a distance without actually touching them. An electromagnetic wave begins when an electrically charged particle vibrates. This is illustrated in Figure 21.2. When a charged particle vibrates, it causes the electric field surrounding it to vibrate as well. A vibrating electric field, in turn, creates a vibrating magnetic field (you can learn how this happens in the chapter "Electromagnetism"). The two types of vibrating fields combine to create an electromagnetic wave. You can see an animation of an electromagnetic wave at this URL: (1:31). MEDIA Click image to the left or use the URL below. URL: As you can see in Figure 21.2, the electric and magnetic fields that make up an electromagnetic wave occur are at right angles to each other. Both fields are also at right angles to the direction that the wave travels. Therefore, an electromagnetic wave is a transverse wave. Unlike a mechanical transverse wave, which requires a medium, an electromagnetic transverse wave can travel through space without a medium. Waves traveling through a medium lose some energy to the medium. However, when an electromagnetic wave travels through space, no energy is lost, so the wave doesnt get weaker as it travels. However, the energy is "diluted" as it spreads out over an ever-larger area as it travels away from the source. This is similar to the way a sound wave spreads out and becomes less intense farther from the sound source. Electromagnetic waves can travel through matter as well as across space. When they strike matter, they interact with it in the same ways that mechanical waves interact with matter. They may reflect (bounce back), refract (bend when traveling through different materials), or diffract (bend around objects). They may also be converted to other forms of energy. Microwaves are a familiar example. They are a type of electromagnetic wave that you can read about later on in this chapter, in the lesson "The Electromagnetic Spectrum." When microwaves strike food in a microwave oven, they are converted to thermal energy, which heats the food. Electromagnetic radiation behaves like waves of energy most of the time, but sometimes it behaves like particles. As evidence accumulated for this dual nature of electromagnetic radiation, the famous physicist Albert Einstein developed a new theory about electromagnetic radiation, called the wave-particle theory. This theory explains how electromagnetic radiation can behave as both a wave and a particle. In brief, when an electron returns to a lower energy level, it is thought to give off a tiny "packet" of energy called a photon (see Figure 21.3). The amount of energy in a photon may vary. It depends on the frequency of electromagnetic radiation. The higher the frequency is, the more energy a photon has. The most important source of electromagnetic radiation on Earth is the sun. Electromagnetic waves travel from the sun to Earth across space and provide virtually all the energy that supports life on our planet. Many other sources of electromagnetic waves that people use depend on technology. Radio waves, microwaves, and X rays are examples. We use these electromagnetic waves for communications, cooking, medicine, and many other purposes. Youll learn about all these types of electromagnetic waves in this chapters lesson on "The Electromagnetic Spectrum." 
 Question: transfer of energy by waves such as radio waves and light
answer:

electromagnetic radiation