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.

Example Input: Context: Loosely based on the 1967 folk song by Bobbie Gentry, and set in the year 1953 in rural Mississippi, the film explores the budding relationship between 19-year-old Billy Joe McAllister (Robby Benson) and 16-year-old Bobbie Lee Hartley (Glynnis O'Connor) (who corresponds with the unnamed narrator of the original song), despite resistance from Hartley's family, who contend she is too young to date. Yet every day, after being dropped off by her school bus at the Tallahatchie Bridge over the Tallahatchie River which leads to the Hartley farm, Bobbie Lee slips away to a local sawmill where Billy Joe works just to hang out with him at the end of his shift.When Bobbie Lee and her father have a confrontation with three thugs driving a battered pick-up truck from a neighboring county across the state line in Alabama, they chase them to the Tallahatchie where they force their truck off the road which ends up dangling off the bridge. With Bobbie Lee's father unwilling to abandon his truck and abandon the precious eggs and cargo he is delivering to the local market, Bobbie Lee is forced to run several miles to the sawmill to ask Billy Joe, her brother and another employee to rescue her father and save his truck. This incident seem to bring Bobbie Lee and Billy Joe more close to each other.One night at a jamboree, Billy Joe gets drunk and seems nauseated and confused when entering a makeshift whorehouse behind the gathering. Later, Bobbie Lee finds out through the town grapevine that Billy Joe was accused of assaulting one of the prostitutes and is wanted for questioning.After disappearing for days, Billy Joe returns to bid an enigmatic goodbye to Bobbie Lee on the Tallahatchie Bridge. When she presents him with her childhood rag doll, he knocks it away from her and it falls into the river while the passing priest, Brother Taylor, sees from afar. After Billy Joe runs off, Bobbie Lee asks if everything is all right and Billy Joe then blurts out: "It ain't all right! I have been with a man... which is a sin against nature, a sin against God!" It is here where he confides in her that on the evening during the jamboree, in his inebriated state, he had sex with another man. Bobbie Lee is somewhat shaken but takes the news very calmly. Overcome with guilt over his homosexual encounter, Billy Joe subsequently kills himself by jumping off the Tallahatchie bridge the next day (off-camera).In the film's final scene, set a few days later after Billy Joe's funeral, Bobbie Lee meets Dewey Barksdale (James Best), Billy Joe's sawmill boss on the bridge as she is leaving town for a while, and he guiltily confesses to her that he was the man whom had sexual relations with Billy Joe that night. She tells Dewey, who is on his way to her house to confess to her father, that the town already falsely suspects that she is carrying Billy Joe's baby and that it would do no good for Dewey to confess now since he could go to prison for sodomy charges. Agreeing with the girl's logic, Dewey offers Bobbie Lee a ride to the bus station, which she courteously accepts.The rest of the story (and song) is history: "A year has come and gone since we heard the news about Billy Joe. Brother married Becky Thompson and they bought a store in Tupelo. There was a virus goin' around, Papa caught it and he died last spring. And now Mama doesn't wanna do much of anything. And me, I spend a lot of time picking flowers up on Choctaw Ridge and dropping 'em into the muddy waters off the Tallahatchie Bridge." 
 Question: At what event does Mccallister get drunk?
Example Output: a jamboree

Example Input: Context: Sedimentary rocks follow certain rules. 1. Sedimentary rocks are formed with the oldest layers on the bottom and the youngest on top. 2. Sediments are deposited horizontally, so sedimentary rock layers are originally horizontal, as are some vol- canic rocks, such as ash falls. 3. Sedimentary rock layers that are not horizontal are deformed. Since sedimentary rocks follow these rules, they are useful for seeing the effects of stress on rocks. Sedimentary rocks that are not horizontal must have been deformed. You can trace the deformation a rock has experienced by seeing how it differs from its original horizontal, oldest- on-bottom position. This deformation produces geologic structures such as folds, joints, and faults that are caused by stresses. Youre standing in the Grand Canyon and you see rocks like those in the Figure 1.1. Using the rules listed above, try to figure out the geologic history of the geologic column. The Grand Canyon is full mostly of sedimentary rocks, which are important for deciphering the geologic history of a region. In the Grand Canyon, the rock layers are exposed like a layer cake. Each layer is made of sediments that were deposited in a particular environment - perhaps a lake bed, shallow offshore region, or a sand dune. (a) The rocks of the Grand Canyon are like a layer cake. (b) A geologic column showing the rocks of the Grand Canyon. In this geologic column of the Grand Canyon, the sedimentary rocks of groups 3 through 6 are still horizontal. Group 2 rocks have been tilted. Group 1 rocks are not sedimentary. The oldest layers are on the bottom and youngest are on the top. The ways geologists figure out the geological history of an area will be explored more in the chapter Earth History. Click image to the left or use the URL below. URL: 
 Question: the classic location to see layer cake geology is
Example Output: the grand canyon

Example Input: Context: Something that is elastic can return to its original shape after being stretched or compressed. This property is called elasticity. As you stretch or compress an elastic material, it resists the change in shape. It exerts a counter force in the opposite direction. This force is called elastic force. Elastic force causes the material to spring back to its original shape as soon as the stretching or compressing force is released. You can watch a demonstration of elastic force at this URL: (3:57). MEDIA Click image to the left or use the URL below. URL: Elastic force can be very useful. You probably use it yourself every day. A few common uses of elastic force are pictured in Figure 13.25. Did you ever use a resistance band like the one in the figure? When you pull on the band, it stretches but doesnt break. The resistance you feel when you pull on it is elastic force. The resistance of the band to stretching is what gives your muscles a workout. After you stop pulling on the band, it returns to its original shape, ready for the next workout. Springs like the ones in Figure 13.26 also have elastic force when they are stretched or compressed. And like stretchy materials, they return to their original shape when the stretching or compressing force is released. Because of these properties, springs are used in scales to measure weight. They also cushion the ride in a car and provide springy support beneath a mattress. Can you think of other uses of springs? 
 Question: When you compress a spring, it
Example Output:
resists the change in shape.