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.

Ex Input:
Context: The film depicts the construction and ultimate demolition of a metaphorical wall. Though the film's symbolism is open to interpretation, the wall itself clearly reflects a sense of isolation and alienation.Pink (Bob Geldof), the protagonist (and unreliable narrator) of the film, is a rock star, one of several reasons behind his apparent depressive and detached emotional state. He is first seen in a quiet hotel room, having trashed it. The opening music is not by Pink Floyd, but is the Vera Lynn recording of "The Little Boy that Santa Claus Forgot". During the following scenes, it is revealed that Pink's father, a British soldier, was killed in action during World War II during Pink's infancy. The reference is almost certainly to the death of Roger Waters' real-life father, Eric Fletcher Waters, who died in combat in Italy during Operation Shingle (the Battle of Anzio) in February 1944.The movie then flashes back to Pink as a young English boy growing up in the early 1950s. Throughout his childhood, Pink longs for a father figure after he learns his father died in the war. At school, he is humiliated by his mean and stern teacher for writing poems in class. The poems that the teacher seizes from him and reads aloud are lyrics from "Money" from the Pink Floyd album Dark Side of the Moon. Pink is also affected by his overprotective mother who spoils him by giving him whatever he wants.As an adult, Pink eventually gets married as his fame as a rock star grows, but he and his wife grow apart and she has an affair while Pink is on tour. When Pink learns of the affair, he compensates with expensive materialistic possessions and turns to a willing groupie (Jenny Wright), whom he brings back to his hotel room only to trash it in a fit of violence, causing her to flee the room in terror.Pink slowly begins to lose his mind to metaphorical "worms". He shaves off all of his body hair (an incident inspired by former bandmate Syd Barrett, who appeared at a 1975 recording session of Wish You Were Here, having shaved his eyebrows and body hair) and, while watching The Dam Busters on television, morphs into his neo-Nazi alter-ego. Pink's manager (Bob Hoskins), along with the hotel manager (Michael Ensign) and some paramedics, break into the hotel room and discover Pink. They take him away into a waiting limousine outside the hotel and inject him with drugs to enable him to perform.The drugs cause Pink to hallucinate and he fantasises that he is a neo-Nazi dictator, his concert is a rally. His followers proceed to attack ethnic minorities and rape the white girlfriend of a black man. Later, Pink holds a rally in suburban London, singing "Waiting for the Worms". The scene is inter-cut by images of animated marching hammers that goose-step across ruins.Pink screams "Stop!" and takes refuge in a bathroom stall at the concert venue, reciting poems which would later be used as lyrics on Pink Floyd's "Your Possible Pasts" from The Final Cut album and "5:11 AM (The Moment Of Clarity)" from Roger Waters' The Pros and Cons of Hitch Hiking.In a climatic animated sequence, Pink puts himself on trial. He is depicted as a small, pink rag doll that rarely moves. The judge is a giant pair of buttocks, with two backward facing legs, an anus for a mouth and a scrotum for a chin. The lawyer is a tall, menacing, vulturelike man and the schoolmaster is an abusive, hateful marionette. After hearing from the parties and witnesses (Pink's wife and mother), the judge orders the wall to be torn down. The wall explodes and shows a montage of events from the entire film.The film concludes with three children cleaning up a pile of debris after an earlier riot. It is unknown whatever has happened to Pink, leaving the viewer to decide. 
 Question: What kind of doll is Pink depicted as?

Ex Output:
small pink rag doll that rarely moves


Ex Input:
Context: Hoping to rebound from their home loss to the Patriots, the Cowboys stayed at home for a Week 7 intraconference game against the Minnesota Vikings. In the first quarter, Dallas scored first as QB Tony Romo completed a 5-yard TD pass to WR Terrell Owens. The Vikings would respond with RB Adrian Peterson getting a 20-yard TD run. In the second quarter, Minnesota took the lead after a turnover. WR Patrick Crayton fumbled a pass, which was picked up LB Ben Leber, who later lateraled the ball to CB Cedric Griffin, who would eventually fumble and recover the ball at the Cowboys 28-yard line and run it into the end zone for a touchdown. In the third quarter, RB Marion Barber got a 1-yard TD run, while Safety Pat Watkins returned a blocked field goal by Chris Canty 68 yards for a touchdown. It would mark the first time that a Cowboy player returned a blocked field goal since Ed "Too Tall" Jones in 1983 against the New Orleans Saints on Sept. 25, 1983. In the fourth quarter, Dallas sealed the victory with rookie Nick Folk getting a 45-yard field goal. With the win, the Cowboys entered their bye week at 6-1. 
 Question: Who scored the shortest touchdown?

Ex Output:
marion barber


Ex Input:
Context: Newtons third law of motion states that every action has an equal and opposite reaction. This means that forces always act in pairs. First an action occurs, such as the skateboarders pushing together. Then a reaction occurs that is equal in strength to the action but in the opposite direction. In the case of the skateboarders, they move apart, and the distance they move depends on how hard they first pushed together. You can see other examples of actions and reactions in Figure 14.9. You can watch a video about actions and reactions at this URL: You might think that actions and reactions would cancel each other out like balanced forces do. Balanced forces, which are also equal and opposite, cancel each other out because they act on the same object. Action and reaction forces, in contrast, act on different objects, so they dont cancel each other out and, in fact, often result in motion. For example, in Figure 14.9, the kangaroos action acts on the ground, but the grounds reaction acts on the kangaroo. As a result, the kangaroo jumps away from the ground. One of the action-reaction examples in the Figure 14.9 does not result in motion. Do you know which one it is? What if a friend asked you to play catch with a bowling ball, like the one pictured in Figure 14.10? Hopefully, you would refuse to play! A bowling ball would be too heavy to catch without risk of injury assuming you could even throw it. Thats because a bowling ball has a lot of mass. This gives it a great deal of momentum. Momentum is a property of a moving object that makes the object hard to stop. It equals the objects mass times its velocity. It can be represented by the equation: Momentum = Mass Velocity This equation shows that momentum is directly related to both mass and velocity. An object has greater momentum if it has greater mass, greater velocity, or both. For example, a bowling ball has greater momentum than a softball when both are moving at the same velocity because the bowling ball has greater mass. However, a softball moving at a very high velocity say, 100 miles an hour would have greater momentum than a slow-rolling bowling ball. If an object isnt moving at all, it has no momentum. Thats because its velocity is zero, and zero times anything is zero. Momentum can be calculated by multiplying an objects mass in kilograms (kg) by its velocity in meters per second (m/s). For example, assume that a golf ball has a mass of 0.05 kg. If the ball is traveling at a velocity of 50 m/s, its momentum is: Momentum = 0.05 kg 50 m/s = 2.5 kg m/s Note that the SI unit for momentum is kgm/s. Problem Solving Problem: What is the momentum of a 40-kg child who is running straight ahead with a velocity of 2 m/s? Solution: The child has momentum of: 40 kg 2 m/s = 80 kgm/s. You Try It! Problem: Which football player has greater momentum? Player A: mass = 60 kg; velocity = 2.5 m/s Player B: mass = 65 kg; velocity = 2.0 m/s When an action and reaction occur, momentum is transferred from one object to the other. However, the com- bined momentum of the objects remains the same. In other words, momentum is conserved. This is the law of conservation of momentum. Consider the example of a truck colliding with a car, which is illustrated in Figure 14.11. Both vehicles are moving in the same direction before and after the collision, but the truck is moving faster than the car before the collision occurs. During the collision, the truck transfers some of its momentum to the car. After the collision, the truck is moving slower and the car is moving faster than before the collision occurred. Nonetheless, their combined momentum is the same both before and after the collision. You can see an animation showing how momentum is conserved in a head- 
 Question: combined momentum of objects remains the same when an action-reaction occurs

Ex Output:

law of conservation of momentum