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: Something in chocolate could be used to stop coughs and lead to more effective medicines, say UK researchers. Their study found that theobromine , found in cocoa, was nearly a third more effective in stopping coughs than codeine, which was considered the best cough medicine at present. The Imperial College London researchers who published their results online said the discovery could lead to more effective cough treatment. "While coughing is not necessarily harmful it can have a major effect on the quality of life, and this discovery could be a huge step forward in treating this problem," said Professor Peter Barnes. Ten healthy volunteers were given theobromine, codeine or placebo, a pill that contains no medicine, during the experiment. Neither the volunteers nor the researchers knew who received which pill. The researchers then measured levels of capsaicin, which is used in research to cause coughing and as a sign of how well the medicines are stopping coughs. The team found that, when the volunteers were given theobromine, the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed only slightly higher levers of capsaicin to cause a cough compared with the placebo. The researchers said that theobromine worked by keeping down a nerve activity , which cause coughing. They also found that unlike some standard cough treatments, theobromine caused no side effects such as sleepiness. 
 Question: What was used in the experiment to cause coughing?
answer:
capsaicin.


question:
Context: Assume that a school bus, like the one in Figure 12.2, passes by as you stand on the sidewalk. Its obvious to you that the bus is moving. It is moving relative to you and the trees across the street. But what about to the children inside the bus? They arent moving relative to each other. If they look only at the other children sitting near them, they will not appear to be moving. They may only be able to tell that the bus is moving by looking out the window and seeing you and the trees whizzing by. This example shows that how we perceive motion depends on our frame of reference. Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion. For the children on the bus, if they use other children riding the bus as their frame of reference, they do not appear to be moving. But if they use objects outside the bus as their frame of reference, they can tell they are moving. What is your frame of reference if you are standing on the sidewalk and see the bus go by? How can you tell the bus is moving? The video at the URL below illustrates other examples of how frame of reference is related to motion. MEDIA Click image to the left or use the URL below. URL: Did you ever go to a track meet like the one pictured in Figure 12.3? Running events in track include 100-meter sprints and 2000-meter races. Races are named for their distance. Distance is the length of the route between two points. The length of the route in a race is the distance between the starting and finishing lines. In a 100-meter sprint, for example, the distance is 100 meters. The SI unit for distance is the meter (1 m = 3.28 ft). Short distances may be measured in centimeters (1 cm = 0.01 m). Long distances may be measured in kilometers (1 km = 1000 m). For example, you might measure the distance a frogs tongue moves in centimeters and the distance a cheetah moves in kilometers. Maps can often be used to measure distance. Look at the map in Figure 12.4. Find Mias house and the school. You can use the map key to directly measure the distance between these two points. The distance is 2 kilometers. Measure it yourself to see if you agree. Things dont always move in straight lines like the route from Mias house to the school. Sometimes they change direction as they move. For example, the route from Mias house to the post office changes from west to north at the school (see Figure 12.4). To find the total distance of a route that changes direction, you must add up the distances traveled in each direction. From Mias house to the school, for example, the distance is 2 kilometers. From the school to the post office, the distance is 1 kilometer. Therefore, the total distance from Mias house to the post office is 3 kilometers. You Try It! Problem: What is the distance from the post office to the park in Figure 12.4? Direction is just as important as distance in describing motion. For example, if Mia told a friend how to reach the post office from her house, she couldnt just say, "go 3 kilometers." The friend might end up at the park instead of the post office. Mia would have to be more specific. She could say, "go west for 2 kilometers and then go north for 1 kilometer." When both distance and direction are considered, motion is a vector. A vector is a quantity that includes both size and direction. A vector is represented by an arrow. The length of the arrow represents distance. The way the arrow points shows direction. The red arrows in Figure 12.4 are vectors for Mias route to the school and post office. If you want to learn more about vectors, watch the videos at these URLs: (5:27) MEDIA Click image to the left or use the URL below. URL: You Try It! Problem: Draw vectors to 
 Question: change in position
answer:
motion


question:
Context: Harvey Shine (Dustin Hoffman) works as a jingle writer for television commercials in Manhattan, a job not in keeping with his one-time aspiration to be a jazz composer and pianist. We see him at work and he is very good at what he does. However, his boss does not seem impressed with his latest output. As Harvey departs for London to attend his daughter Susan's wedding, his boss actually suggests that he spend more time there than he had originally planned. Harvey declines, making the point that he needs to be back for an upcoming pitch to an old client. His boss insists that it is being done by other musicians, and that Harvey's latest work was his last chance to keep his job.On the plane, Harvey tries to chat up a fellow passenger, but she is having none of it. He is left sitting there with egg on his face and we come to regard him as even more of a loser.Meanwhile, we witness the mildly strained relationship between Kate Walker (Emma Thompson), a single Londoner, and her mother, whose husband left years earlier. Kate tries to reassure her mother that despite being single, she may yet find a man. Further, Kate tells her mom to quit worrying about the new Polish neighbor who has moved in next door and seems to be stacking a lot of firewood.Upon arrival at Heathrow Airport in London, Harvey encounters Kate at her job collecting statistics from passengers as they pass through the terminals. She attempts to question him about his reasons for visiting the UK. Tired and anxious to get to his hotel, Harvey brusquely dismisses her when she approaches him to ask questions.Harvey heads for the hotel to check in and discovers that he is the first one to arrive. Upon calling his daughter to double check where everyone else is when they were all supposed to be staying together, he learns that his ex-wife Jean actually rented a house to accommodate family and friends from the States and he is the only one at the hotel.After a brief nap, he showers and hurriedly dresses. On the way to the rehearsal dinner in the taxi cab, he realizes the anti-shoplifting device is still attached to the sleeve of his jacket. And to make matter worse, he has worn a white suit (thinking this was requested) while all the other men wore black. During the meal, it becomes increasingly clear Harvey is considered a mere guest and the role of father of the bride has been delegated to Jean's husband Brian. To add insult to injury, Brian stands to give the toast, and recollects the vacation they all spent in Rome, and his stepson-in-law-to-be embraces him and calls him Dad. Just before leaving back to his hotel, when Harvey tells Susan (with whom he has shared a strained relationship since his divorce) that he will be attending the ceremony but not the subsequent reception because he needs to return to the States for an important meeting, she informs him she has asked Brian to give her away.Meanwhile, Kate is set up on a blind date by a well meaning co-worker that does not go well. When she returns to the table after taking yet another call from her mother, she discovers her younger date has invited some of his younger friends to join them. Feeling unwanted and excluded from the conversation, she eventually excuses herself and goes home. As it turns out, Kate's increasingly neurotic mother seems convinced that her Polish neighbor is some kind of murderer because she sees him toting strange looking, lumpy packages into a shed in the back yard.The following morning Harvey attends Susan's wedding, but heavy traffic delays his arrival back to Heathrow, and he misses his plane. When he calls his boss Marvin in NYC to inform him he will be returning a day later than planned and that he will try to get there as soon as possible, he is told that he is fired.In his glum mood, Harvey makes his way to the airport bar and starts slugging down scotch, determined to drown his sorrows. Kate is sitting in the lounge reading 
 Question: Who has heart palpitations and is rushed to the hospital?
answer:

harvey


