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.

[Q]: Context: A lonely old woman who longs for a child is given a seed by a good witch. When planted, the seed grows into a flower, and inside the blossom is a tiny girl the size of the old woman's thumb. The old woman names the girl Thumbelina and raises her as her own. Although Thumbelina loves her mother, she craves companionship from someone her own size. One night, Cornelius, the fairy prince, stumbles upon Thumbelina after hearing her beautiful singing. The two take a ride on Cornelius' bumblebee, and fall in love; during this ride Mrs. Toad and her son Grundel are enchanted by Thumbelina's singing. Cornelius promises to return the next day, but after he's gone, Mrs. Toad kidnaps Thumbelina from her bed and takes her away. Thumbelina awakens on Mrs. Toad's show boat. Mrs. Toad wants Thumbelina to join their troupe and marry Grundel, who is in love with her. They leave Thumbelina alone on a lily pad in order to fetch a priest, but a friendly swallow, Jacquimo (the narrator of the film), overhears Thumbelina's cries for help and frees her. Jacquimo's friends, the jitterbugs, promise to help Thumbelina get home safely while Jacquimo sets off to find Cornelius. Meanwhile, Cornelius learns of Thumbelina's kidnapping and ventures out to find her. While trying to get home, Thumbelina is ambushed by Berkeley Beetle, who scares the jitterbugs away. He is enamoured with her singing, and promises to show her the way home if she sings at his Beetle Ball first. Thumbelina agrees, but when she's received poorly at the Beetle Ball, Beetle kicks her out without helping her. Winter is approaching. Jacquimo accidentally impales his wing on a thorn and is knocked out by the cold, while Cornelius falls into a lake and is frozen in ice. Grundel, who is searching for Thumbelina, finds Beetle and discovers she is in love with Prince Cornelius and upon some convincing from Beetle, decides to find and kidnap Cornelius to lure Thumbelina to him. Grundel forces Beetle to help him as Grundel steals his wings and won't return them until Beetle has found and captured Cornelius. Thumbelina is taken in by Miss Fieldmouse, who tells her that Cornelius has died. The two visit Miss Fieldmouse's neighbor, Mr. Mole who tells them about a dead bird he found in his tunnel earlier that day. It turns out to be Jacquimo, who Thumbelina discovers to be only unconscious. Mr. Mole wishes to marry Thumbelina; heartbroken over Cornelius's death, Thumbelina accepts. Jacquimo awakens under Thumbelina's care and leaves to find Cornelius, refusing to believe that he is dead. Meanwhile, Beetle brings Cornelius's frozen body to Grundel and informs him that Thumbelina is going to marry the Mole. After the two leave to stop the wedding, the young jitterbugs thaw Cornelius's body out. At the wedding, Thumbelina realizes at the last moment that she can't marry someone she does not love and refuses to take the vows. Grundel and Beetle crash the wedding, but Thumbelina flees from them and Mr. Mole. Cornelius intercepts the crowd and confronts Grundel, the ensuing fight resulting in them both falling into an abyss. Once outside and free, Thumbelina is reunited with Jacquimo, who takes her to Cornelius' kingdom, the Vale of the Fairies. Cornelius appears, having survived the fall, the pair are reunited, and Thumbelina accepts his proposal of marriage. The two kiss, and Thumbelina is granted her own wings. With Thumbelina's mother and the fairy court in attendance, Thumbelina and Cornelius are married and depart on their honeymoon on Cornelius's bumblebee. Images shown during the credits reveal that Beetle resumed his singing career and had gotten his wings back, Ms. Fieldmouse married Mr. Mole, and Grundel also survived the fall with minor injuries and married a female toad (implying that he lost interest in Thumbelina). 
 Question: Who thaws out the prince?
[A]: the young jitterbugs


[Q]: Context: Inventors are always looking for ways to make our lives easier, greener and a whole lot more fun. Take a look at the following breakthroughs in science and technology. What in the world will inventors dream up next? Superhero Suit Have you ever dreamed of becoming a superhero? Dream no more. There's a real Iron Man suit, XOS 2, which instantly transforms the person wearing it. The suit provides the power to lift 200 pounds with ease and break slabs of wood with a single karate chop. It was designed to help the military with heavy lifting. One person in the suit could do the work of three soldiers. Up, Up and Away! It took him 30 years to develop it, and now Glen Martin's invention is ready to take off. The Martin Jetpack allows its operator to fly 8,000 feet into the air. Unfortunately, you can't soar through the skies too long. The jetpack holds only 30 minutes' worth of fuel. The aircraft will sell for $100,000. Hardworking Robot The EMIEW2 robot is the perfect office helper. Need a document delivered? No problem! It can also guide visitors to their destinations. The three-foot-tall robot can identify different human voices and respond to commands. One day, it may serve as a receptionist or a security guard. Green Machine Say goodbye to gasoline! The AirPod car runs on air power. That means this car won't pollute the environment. A high-pressure air tank can fill the car in minutes. The three-wheeler can travel about 130 miles between fill-ups. Beef Power All aboard the beef train! Amtrak's Heartland Flyer runs partly on fuel that is made from cow fat. The goal is to reduce carbon emissions by 10%. The train travels between Oklahoma City, Oklahoma, and Fort Worth, Texas. Robo-Guard EMILY is a robotic, four-foot-long buoy . She can swim through riptides at up to 24 miles per hour. Her inventor, Tony Mulligan, says that's 15 times as fast as human lifeguards! EMILY is powered by a tiny electric pump and operated by remote control. 
 Question: How many environment-friendly inventions are mentioned in the passage?
[A]: three.


[Q]: Context: The ability to see is called vision. It depends on both the eyes and the brain. The eyes sense light and form images. The brain interprets the images formed by the eyes and tells us what we are seeing. For a fascinating account of how the brain helps us see, watch this short video: . MEDIA Click image to the left or use the URL below. URL: Did you ever use 3-D glasses to watch a movie, like the teens in Figure 20.11? If you did, then you know that the glasses make images on the flat screen seem more realistic by giving them depth. The images seem to jump right out of the screen toward you. Unlike many other animals, human beings and other primates normally see the world around them in three dimen- sions. Thats because we have two eyes that face the same direction but are a few inches apart. Both eyes focus on the same object at the same time but from slightly different angles. The brain uses the different images from the two eyes to determine the distance to the object. Human beings and other primates also have the ability to see in color. We have special cells inside our eyes that can distinguish different wavelengths of visible light. Visible light is light in the range of wavelengths that the human eye can sense. The exact wavelength of visible light determines its color. The function of the eye is to focus light and form images. We see some objects, such as stars and light bulbs, because they give off their own light. However, we see most objects because they reflect light from another source such as the sun. We form images of the objects when some of the reflected light enters our eyes. Look at the parts of the eye in Figure 20.12. Follow the path of light through the eye as you read about it below. 1. Light from an object passes first through the cornea. This is a clear, protective covering on the outside of the eye. 2. Then light passes through the pupil, an opening in the center of the eye. The pupil, which looks black, is surrounded by the colored part of the eye, called the iris. 3. Light entering through the pupil next passes through the lens. The lens is a clear, curved structure, like the lens of a magnifying glass. Along with the cornea, the lens focuses the light on the back of the eye. 4. The back of the eye is covered by a thin layer called the retina. This is where the image of the object normally forms. The retina consists of special light-sensing cells called rods and cones. Rods sense dim light. Cones sense different colors of light. 5. Nerve impulses from rods and cones travel to the optic nerve. It carries the nerve impulses to the brain. You probably know people who need eyeglasses or contact lenses to see clearly. Maybe you need them yourself. Lenses are used to correct vision problems. Two of the most common vision problems in young people are myopia and hyperopia. You can compare myopia and hyperopia in Figure 20.13. To learn about astigmatism, another common vision problem, watch this very short video: . MEDIA Click image to the left or use the URL below. URL: Myopia is commonly called nearsightedness. People with myopia can see nearby objects clearly, but distant objects appear blurry. Myopia occurs when images focus in front of the retina because the eyeball is too long. This vision problem can be corrected with concave lenses, which curve inward. The lenses focus images correctly on the retina. Hyperopia is commonly called farsightedness. People with hyperopia can see distant objects clearly, but nearby objects appear blurry. Hyperopia occurs when images focus in back of the retina because the eyeball is too short. This vision problem can be corrected with convex lenses, which curve outward. The lenses focus images correctly on the retina. Vision is just one of several human senses. Other human senses include hearing, touch, taste, and smell. Imagine shopping at the fruit market in Figure 20.14. It would stimulate all of these senses. You would hear the 
 Question: The human eye senses differences in the wavelengths of visible light as different
[A]:
colors.