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.
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Question: Context: Weathering changes solid rock into sediments. Sediments are different sizes of rock particles. Boulders are sedi- ments; so is gravel. At the other end, silt and clay are also sediments. Weathering causes rocks at the Earths surface to change form. The new minerals that form are stable at the Earths surface. It takes a long time for a rock or mountain to weather. But a road can do so much more quickly. If you live in a part of the world that has cold winters, you may only have to wait one year to see a new road start to weather (Figure Mechanical weathering breaks rock into smaller pieces. These smaller pieces are just like the bigger rock; they are just smaller! The rock has broken without changing its composition. The smaller pieces have the same minerals in the same proportions. You could use the expression a chip off the old block to describe mechanical weathering! The main agents of mechanical weathering are water, ice, and wind. Rocks can break apart into smaller pieces in many ways. Ice wedging is common where water goes above and below its freezing point (Figure 9.2). This can happen in winter in the mid-latitudes or in colder climates in summer. Ice wedging is common in mountainous regions. This is how ice wedging works. When liquid water changes into solid ice, it increases in volume. You see this when you fill an ice cube tray with water and put it in the freezer. The ice cubes go to a higher level in the tray than the water. You also may have seen this if you put a can of soda into the freezer so that it cools down quickly. If you leave the can in the freezer too long, the liquid expands so much that it bends or pops the can. (For the record, water is very unusual. Most substances get smaller when they change from a liquid to a solid.) Abrasion is another type of mechanical weathering. With abrasion, one rock bumps against another rock. Gravity causes abrasion as a rock tumbles down a slope. Moving water causes abrasion it moves rocks so that they bump against one another (Figure 9.3). Strong winds cause abrasion by blasting sand against rock surfaces. Finally, the ice in glaciers cause abrasion. Pieces of rock embedded in ice at the bottom of a glacier scrape against the rock below. If you have ever collected beach glass or pebbles from a stream, you have witnessed the work of abrasion. Sometimes biological elements cause mechanical weathering. This can happen slowly. A plants roots grow into a crack in rock. As the roots grow larger, they wedge open the crack. Burrowing animals can also cause weathering. By digging for food or creating a hole to live in the animal may break apart rock. Today, human beings do a lot of mechanical weathering whenever we dig or blast into rock. This is common when we build homes, roads, and subways, or quarry stone for construction or other uses. Mechanical weathering increases the rate of chemical weathering. As rock breaks into smaller pieces, the surface area of the pieces increases. With more surfaces exposed, there are more places for chemical weathering to occur. Lets say you wanted to make some hot chocolate on a cold day. It would be hard to get a big chunk of chocolate to dissolve in your milk or hot water. Maybe you could make hot chocolate from some smaller pieces like chocolate chips, but it is much easier to add a powder to your milk. This is because the smaller the pieces are, the more surface area they have. Smaller pieces dissolve more easily. Chemical weathering is different than mechanical weathering. The minerals in the rock change. The rock changes composition and becomes a different type of rock. Most minerals form at high pressure or high temperatures deep within Earth. But at Earths surface, temperatures and pressures are much lower. Minerals that were stable deeper in the crust are not stable at the surface. Thats why chemical weathering happens. Minerals that formed at higher temperature and pressure change into minerals that are stable at the surface. Chemical weathering is important. It 
 Question: weathering process that occurs when rocks and rock particles scrape other rocks

Answer: abrasion


Question: Context: The film opens with Soichi Negishi (Kenichi Matsuama) walking along side his mother to a small country train station. Negishi hopes to move to Japan, and realize his musical dreams, as a pop singer. As he rides away in the train, he sees his younger brother wave to him from a field.Now we are taken to a dark alleyway, where many alternative Japanese youths are entering a club called "Hell's Gate." Inside we see a death metal band(in rather flamboyant attire, and black and white make-up) preforming for a large crowd. This band, is Detroit Metal City. The singer, is then revealed to be Negashi, and why crowd surfing he narrates of his dislike of what he has become.The opening credits roll.We now see Negashi removing his makeup with a rag, and talking a fellow band mate, which is his lazy, bloomer obsessed drummer Terumichi Nishida . He begs Nishida to return a video-game he had let him borrow, out of fear of him losing it. Now the band's bassist Masayuki Wada speaks to Negashi about how well he believed the show had done.The dressing room door bursts open, and with a wild laugh the President Of Death Records(who also seems to be the band's manager) enters, and tosses a cigarette into a ash tray that Wada held, but it simply bounced out and went out of frame. She told them of how well they did, but in remorse Negashi played for her a tape of the pop music he wishes to make. Displeased, she kicked him.Now with a swollen mouth, Negashi leaves the dressing room in his normal attire, and pushes his way through the crowd of oblivious screaming fans, hoping to get a look at the band. He is hit, and begins to bleed from the nose. As he made his way up the stairs, he heard the fans talk of rumors they had heard about the lead singer Krauser, such as his ability to rape many women.Negashi is now on the street, and he is playing his pop music on an acoustic guitar, with people only stoping to glance at him, and then walk away. He stops playing and hears some pop music being played around the corner. As he goes to investigate he sees that the lead singer of the band was an old college friend, and then that a woman standing near him was his college crush Yuri Aikawa.He reflects on the old days, of them all sitting around playing music together, and of his quote "No music, No dream."He is soon at a record store, looking at the latest fashionable cd covers, when he sees Aikawa, and they began to chat, and make plans to meet later at a cafe. Then a blast of near-by music startles him, and he walks to the next isle to investigate. Several DMC fans had gathered to celebrate the release of a new single with head-banging, and loud music. Negashi dislikes the album cover, and complains about a quote that was in his name, that he never said. Aikawa then tells him of her distaste for metal, and how unfashionable she finds Detroit Metal City.Negashi is now in full attire with his band, doing an interview about the new single. His mind is off daydreaming about Aikawa when he realizes it is time for their date and he runs out of the interview to meet her. Negashi is now constantly going back and forth between the date, and the interview, each time forgetting to remove more and more of his DMC attire. With a feeling that negashi was going into the near-by club, she enters in hopes of finding him, but meets Krauser crowd surfing. Negashi in fear, tries to get the crowd to move him away from her, but the get him closer and closer, until he felt his wig began to slip off. The only thing he could do to cover himself, was to lift up her dress, showing her underwear. She calls him a pig, and walks out.Now Negashi is outside of a cafe, and is banging on the wall in 
 Question: Who is he in stage costume?

Answer: krauser


Question: Context: The 49ers would trail 20-13 with less than a minute to go. Blaine Gabbert would run in a game-tying 44 yard touchdown to tie the game at 20. The Bears appeared to have the game won when they went down the field after a decent kick return by Deonte Thompson for 74 yards. Robbie Gould came out to attempt a game-winning 36 yard field goal, but the kick was wide left, resulting in overtime. In the overtime period, Gabbert would throw the game-winning 71-yard touchdown pass to Torrey Smith to win the game for San Francisco. This was San Francisco's first win in Chicago since the 1989 NFC Championship Game. 
 Question: Which team won the game?

Answer:
san francisco