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: The first astronomer to record the Butterfly Cluster's existence was Giovanni Battista Hodierna in 1654. 
 Question: What year was Butterfly Cluster found?
Example Output: 1654

Example Input: Context: Did you ever make a secret code? One way to make a code is to represent each letter of the alphabet by a different number. Then you can send a coded message by writing words as strings of digits. This is similar to how information is encoded using an electric current. The voltage of the current is changed rapidly and repeatedly to encode a message, called an electronic signal. There are two different types of electronic signals: analog signals and digital signals. Both are illustrated in Figure 23.20. A digital signal consists of pulses of voltage, created by repeatedly switching the current off and on. This type of signal encodes information as a string of 0s (current off) and 1s (current on). This is called a binary ("two-digit") code. DVDs, for example, encode sounds and pictures as digital signals. An analog signal consists of continuously changing voltage in a circuit. For example, microphones encode sounds as analog signals. Electronic components are the parts used in electronic devices such as computers. The components transmit and change electric current. They are made of materials called semiconductors. A semiconductor is a solid crystalusually consisting mainly of siliconthat can conduct current better than an electric insulator but not as well as an electric conductor. Very small amounts of other elements, such as boron or phosphorus, are added to the silicon so it can conduct current. A semiconductor is illustrated in Figure 23.21. There are two different types of semiconductors: n-type and p-type. An n-type semiconductor consists of silicon and an element such as phosphorus that gives the silicon crystal extra electrons. An n-type semiconductor is like the negative terminal in a chemical cell. A p-type semiconductor consists of silicon and an element such as boron that gives the silicon positively charged holes where electrons are missing. A p-type semiconductor is like the positive terminal in a chemical cell. Electronic components contain many semiconductors. Types of components include diodes, transistors, and inte- grated circuits. Each type is described in Table 23.2. Electronic Component Diode Transistor Integrated Circuit (Microchip) Description A diode consists of a p-type and an n-type semicon- ductor placed side by side. When a diode is connected by leads to a source of voltage, electrons flow from the n-type to the p-type semiconductor. This is the only direction that electrons can flow in a diode. This makes a diode useful for changing alternating current to direct current. A transistor consists of three semiconductors, either p- n-p or n-p-n. Current cant flow through a transistor unless a small amount of current is applied to the center semiconductor (through the base). Then a much larger current can flow through the transistor from end to end (from collector to emitter). This means that a transmitter can be used as a switch, with pulses of a small current turning a larger current on and off. A transistor can also be used to increase the amount of current flowing through a circuit. You can learn more about transistors and how they work at this URL: http An integrated circuitalso called a microchipis a tiny, flat piece of silicon that consists of layers of elec- tronic components such as transistors. An integrated circuit as small as a fingernail can contain millions of electronic components. Current flows extremely rapidly in an integrated circuit because it doesnt have far to travel. You can learn how microprocessors are made at this URL: Many of the devices you commonly use are electronic. Electronic devices include computers, mobile phones, TV remotes, DVD and CD players, game systems, MP3 players, and digital cameras. All of these devices use electric current to encode, analyze, or transmit information. Consider the computer as an example of an electronic device. A computer contains microchips with millions of tiny electronic components. Information is encoded as 0s and 1s and transmitted as electrical pulses. One digit (either 0 or 1) is called a bit, which stands for "binary digit." Each group of eight digits is called a byte. A gigabyte is a billion bytes that 
 Question: The type of electronic component that can be used to increase the amount of current flowing through a circuit is a
Example Output: transistor.

Example Input: Context: Saturday, October 8, 120 miles northeast of Blainsworth, Nebraska; 1:16 p.m.Bob Irisin, a metrologist for the Kansas City weather bureau, is riding in his Bronco truck when he stops and radios to his friend Stan in Kansas City, that he is witnessing a sudden change in weather patterns in the area. Then a tornado suddenly touches down near a farm where Bob sees a family of a man, woman and their little girl standing in front of the house, unaware of the tornado approaching behind them. Bob drives as near as he can go and manages to yell out a warning to the family seconds before they see the twister coming. The family runs into their storm shelter just in time before the twister destroys their house. Bob drives away from harms way just in time.Meanwhile, in Blainsworth, there is the annual fall Bike-a-thon race for the high school kids. 13-year-old Dan Hatch gets a flat tire and doesnt come in at all. Dans stern father, Jack, is arguing with a banker who's asking to foreclose on his hardware shop since a new mall has opened in the nearby town. Jack refuses to sell the shop at any price. Dan walks his bike into the town square where his best friend, Arthur, talks with him about getting "crashed and burned" during the race. Jack walks over and becomes hard on Dan for not finishing the race like a man should. Dan yells at his father for being so demanding and that he can't expect anything from anyone. Dan's mother, Laura, with her new baby Ryan and her friend Jenny, walk by and never less tell him he did okay anyway. Just then, Dan is called to the square podium for he is has been chosen by a lottery to be the winner of a new Schwinn Voyager bicycle, much to his father and mother's delight.75 miles northeast of Blainsworth; 3:37 p.m. Bob sits in his Bronco truck and radios in of rogue weather patterns, while observing another tornado rip through a nearby trailer park. Bob tells Stan that the front is moving south instead of north and the atmospheric activity is the most bizarre he has ever seen. Bob decides to travel to Blainsworth to see if anything will happen.Outside of Blainsworth, Dan and Arthur sit in the woods looking up at the clear sky. Dan tell Arthur about his fathers demanding which is a driving force that he cant stand. Then Arthur's two younger sisters, Stacey and Ronnie Vae, appear and want Arthur to come home since their parents are out of town for the weekend. Arthur and Dan watch as clouds begin to roll in and they decide to get indoors. At Arthurs house, the boys play a game of pool, in which Dan forgets he's suppose to take his grandmother's dog for a walk.Six miles northeast of Blainsworth 4:30 p.m.; Dan arrives at his grandmother Goldie's house where his father is already there taking her dog to the vet, for it has a bad leg. Jack yells at Dan for not being responsible for anything, and Dan rides on his new bike home.Arthur arrives at the Hatch house, were Laura is getting ready to leave for work for the evening. Jenny arrives at the house to pick Laura up, were they talk about Jack being so domineering on Dan for he doesn't want Dan to end up a loser like him.Nightfall. Arthur and Dan play with musical instruments, while checking every few minutes if baby Ryan in the next room is all right. Jack then arrives and tells Dan and Arthur to bring their bicycles in for its raining. Going out, they find that its raining hard and the winds are picking up speed. Arthur tells Dan that since hes originally from Los Angeles, he enjoys the rain, while Dan sees little amusement in it, for he tells Arthur that rain and hailstorms can get bad.At the local diner in town, Laura is waitressing when Bob walks in asking for some coffee. Bob overhears a farmer named Gus talk about the storm and of tornados reported in the area. Bob tells Gus that most people killed by tornados 
 Question: Who is Danny infatuated with?
Example Output:
arthur's sister stacey