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.

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: When both distance and direction are considered, motion
is a vector.

Context: The tradition of birthday parties started in Europe a long time ago. It was feared that evil spirits were particularly attracted to people on their birthdays. To protect them from harm, friends and family members would come to stay with the birthday person and bring good thoughts and wishes. Giving gifts brought even more good cheer to keep away from the evil spirits. This is how birthday parties began. The following are some countries' birthday traditions: Canada---Putting butter on the nose. In Atlantic Canada, the birthday child's nose is put butter on for good luck. China---Noodles for lunch. The birthday child pays respect to his / her parents and receives a gift of money. Friends and relatives are invited to lunch and noodles are served to wish the birthday child a long life. England---Money cakes. Certain symbolic objects are mixed into the birthday cake as it is being prepared. If your piece of cake has a coin in it, you will be rich. Ireland---Birthday bump . The birthday child is lifted upside down and " bumped" on the floor for good luck. Italy---Pulling ears. The child's ears are pulled as many times as how old he / she is turning. Japan---New clothes. The birthday child wears new clothes to mark the occasion. New Zealand---Birthday claps. After the candles are hit, the happy birthday song is sung loudly and often out of tune and then the birthday person receives a clap for each year he / she has been alive and then one for good luck. The United States---Cake, candles and the birthday song. A cake is made, and candles are put on top based on how old the person is. 
 Question: According to the passage, in which country can the birthday children probably receive a gift of money?
china.

Context: The opening crawl reveals that Han Solo's friends are engaged in a mission to rescue the smuggler from Jabba the Hutt and that the Galactic Empire is building a new armored space station which is even larger and more powerful than the first Death Star.Near the forest moon of Endor the new Death Star is being constructed in orbit, and a command star destroyer arrives and launches a shuttle with a fighter escort -- a shuttle bearing the Dark Lord of the Sith. Fearing his arrival, the commander of the new Death Star informs Darth Vader (David Prowse, voice: James Earl Jones) that the station will be operational on schedule, but when Vader challenges this "optimistic" appraisal of the situation, the commander admits that he needs more men to accelerate construction. Darth Vader, however, informs the commander that the Emperor (Ian McDiarmid) will be arriving soon, and that he is most displeased with the commander's progress. Shaken, the commander commits to redoubling construction efforts. Vader, pleased, remarks, "the Emperor is not as forgiving as I am."Jedi Knight Luke Skywalker (Mark Hamill), Chewbacca (Peter Mayhew), Lando Calrissian (Billy Dee Williams), Princess Leia Organa (Carrie Fisher), C-3PO (Anthony Daniels), and R2-D2 (Kenny Baker) return to Tatooine to rescue Han Solo (who was encased in carbonite at the end of Star Wars: Episode V - The Empire Strikes Back) from the gangster Jabba the Hutt (voice: Larry Ward). Luke sends C-3PO and R2-D2 to Jabba's desert palace to deliver a message: In a hologram projected by R2, Luke offers to bargain with Jabba for Solo himself -- if Jabba does not, he will be destroyed. Jabba laughs at the message and refuses to give up his "favorite decoration:" Han, frozen in carbonite, hangs on a wall in Jabba's court. The two droids are sent to EV-9D9's workshop where C-3P0 is given the job of Jabba's translator and R2 will be a drink-server on Jabba's sail barge.Disguised as a bounty hunter named Boushh, Leia arrives in Jabba's court with Chewbacca in cuffs. She offers him to Jabba for a sizable bounty. After Leia dickers with Jabba over the amount and threatens him with a small thermal detonator, Jabba happily agrees to pay, impressed with the bounty hunter's nerve, and Chewbacca is imprisoned.That night, Leia sneaks into Jabba's court and frees Han from the carbonite. However, she and Solo are both captured by Jabba. Solo is imprisoned with Chewbacca and Jabba keeps Leia on display in a metal bikini and chains. Luke arrives with a final ultimatum to release Solo. Jabba again refuses and drops Luke through a trap door into a pit below his throne that houses the rancor, a fearsome beast that Jabba keeps for executions. As Leia watches in horror, she sees Lando Calrissian disguised as a palace guard. After a brief battle, Luke defeats the rancor, enraging Jabba, who declares that Luke, Solo and Chewbacca will be slowly consumed by the sarlacc -- a huge, shark-toothed, tentacled maw at the bottom of the Great Pit of Carkoon.The group is taken to the pit on Jabba's sail barge fleet and prepared for execution: Luke is the first, pushed out onto a thin plank over the pit. Luke gives R2 a short salute and a small object, Luke's new lightsaber, is launched into his hand. A battle erupts, with Luke steadily taking the fight to Jabba's men. During the battle, Leia strangles Jabba with the chain around her neck and with R2-D2's help escapes from her bonds. Solo accidentally knocks Boba Fett (Jeremy Bulloch) into the sarlacc pit. Lando is also thrown off one of the skiffs, hanging by a few cables until he's rescued from the sarlacc itself by Han and Chewbacca. Luke, having fought his way onto Jabba's sail barge, has the escaping Leia aim the deck cannon at the vehicle and sets it on automatic fire; the sail barge soon blows apart. Our heroes manage to escape before it explodes, retrieve R2 and C-3PO and zip off into the desert. 
 Question: Where does Luke return to with his father's body?

endor