Question: Extract the answer to the question from the following context. Question: who developed Prontosil? Context: The first sulfonamide and first commercially available antibacterial, Prontosil, was developed by a research team led by Gerhard Domagk in 1932 at the Bayer Laboratories of the IG Farben conglomerate in Germany. Domagk received the 1939 Nobel Prize for Medicine for his efforts. Prontosil had a relatively broad effect against Gram-positive cocci, but not against enterobacteria. Research was stimulated apace by its success. The discovery and development of this sulfonamide drug opened the era of antibacterials.
Answer: a research team

[Q]: Extract the answer to the question from the following context. Question: Which of the following is not the name of a pub: The Vine, The Cock, or Birmingham? Context: It was the pub that first introduced the concept of the bar counter being used to serve the beer. Until that time beer establishments used to bring the beer out to the table or benches, as remains the practice in (for example) beer gardens and other drinking establishments in Germany. A bar might be provided for the manager to do paperwork while keeping an eye on his or her customers, but the casks of ale were kept in a separate taproom. When the first pubs were built, the main room was the public room with a large serving bar copied from the gin houses, the idea being to serve the maximum number of people in the shortest possible time. It became known as the public bar[citation needed]. The other, more private, rooms had no serving bar—they had the beer brought to them from the public bar. There are a number of pubs in the Midlands or the North which still retain this set up but these days the beer is fetched by the customer from the taproom or public bar. One of these is The Vine, known locally as The Bull and Bladder, in Brierley Hill near Birmingham, another the Cock at Broom, Bedfordshire a series of small rooms served drinks and food by waiting staff. In the Manchester district the public bar was known as the "vault", other rooms being the lounge and snug as usual elsewhere. By the early 1970s there was a tendency to change to one large drinking room and breweries were eager to invest in interior design and theming.
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[A]: Birmingham

input: Please answer the following: Extract the answer to the question from the following context. Question: What does a feedpoint impedance need? Context: Resonant antennas are expected to be used around a particular resonant frequency; an antenna must therefore be built or ordered to match the frequency range of the intended application. A particular antenna design will present a particular feedpoint impedance. While this may affect the choice of an antenna, an antenna's impedance can also be adapted to the desired impedance level of a system using a matching network while maintaining the other characteristics (except for a possible loss of efficiency).
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output: matching network

Please answer this: Extract the answer to the question from the following context. Question: How much is a mole? Context: Equivalently, the smallness of the Planck constant reflects the fact that everyday objects and systems are made of a large number of particles. For example, green light with a wavelength of 555 nanometres (the approximate wavelength to which human eyes are most sensitive) has a frequency of 7014540000000000000♠540 THz (7014540000000000000♠540×1012 Hz). Each photon has an energy E = hf = 6981358000000000000♠3.58×10−19 J. That is a very small amount of energy in terms of everyday experience, but everyday experience is not concerned with individual photons any more than with individual atoms or molecules. An amount of light compatible with everyday experience is the energy of one mole of photons; its energy can be computed by multiplying the photon energy by the Avogadro constant, NA ≈ 7023602200000000000♠6.022×1023 mol−1. The result is that green light of wavelength 555 nm has an energy of 7005216000000000000♠216 kJ/mol, a typical energy of everyday life.
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Answer: 7023602200000000000♠6.022×1023 mol−1

Problem: Extract the answer to the question from the following context. Question: Who were his intimates who shared his interests directly? Context: Four boarders at his parents' apartments became Chopin's intimates: Tytus Woyciechowski, Jan Nepomucen Białobłocki, Jan Matuszyński and Julian Fontana; the latter two would become part of his Paris milieu. He was friendly with members of Warsaw's young artistic and intellectual world, including Fontana, Józef Bohdan Zaleski and Stefan Witwicki. He was also attracted to the singing student Konstancja Gładkowska. In letters to Woyciechowski, he indicated which of his works, and even which of their passages, were influenced by his fascination with her; his letter of 15 May 1830 revealed that the slow movement (Larghetto) of his Piano Concerto No. 1 (in E minor) was secretly dedicated to her – "It should be like dreaming in beautiful springtime – by moonlight." His final Conservatory report (July 1829) read: "Chopin F., third-year student, exceptional talent, musical genius."

A: Fontana, Józef Bohdan Zaleski and Stefan Witwicki

input: Please answer the following: Extract the answer to the question from the following context. Question: Which is not a last name, Gaylord or Station? Context: Oklahoma City was home to several pioneers in radio and television broadcasting. Oklahoma City's WKY Radio was the first radio station transmitting west of the Mississippi River and the third radio station in the United States. WKY received its federal license in 1921 and has continually broadcast under the same call letters since 1922. In 1928, WKY was purchased by E.K. Gaylord's Oklahoma Publishing Company and affiliated with the NBC Red Network; in 1949, WKY-TV (channel 4) went on the air and later became the first independently owned television station in the U.S. to broadcast in color. In mid-2002, WKY radio was purchased outright by Citadel Broadcasting, who was bought out by Cumulus Broadcasting in 2011. The Gaylord family earlier sold WKY-TV in 1976, which has gone through a succession of owners (what is now KFOR-TV is currently owned by Tribune Broadcasting as of December 2013).
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output:
station