[Q]: Extract the answer to the question from the following context. Question: What was invented before the hydrogen gas blowpipe? Context: Hydrogen was liquefied for the first time by James Dewar in 1898 by using regenerative cooling and his invention, the vacuum flask. He produced solid hydrogen the next year. Deuterium was discovered in December 1931 by Harold Urey, and tritium was prepared in 1934 by Ernest Rutherford, Mark Oliphant, and Paul Harteck. Heavy water, which consists of deuterium in the place of regular hydrogen, was discovered by Urey's group in 1932. Francois Isaac de Rivaz built the first de Rivaz engine, an internal combustion engine powered by a mixture of hydrogen and oxygen in 1806. Edward Daniel Clarke invented the hydrogen gas blowpipe in 1819. The Dobereiner's lamp and limelight were invented in 1823.
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[A]: de Rivaz engine
input: Please answer the following: Extract the answer to the question from the following context. Question: Who surrendered? Context: With the Japanese CAP out of position and the carriers at their most vulnerable, SBD Dauntlesses from Enterprise and Yorktown appeared at an altitude of 10,000 feet (3,000 m) and commenced their attack, quickly dealing fatal blows to three fleet carriers: Soryu, Kaga, and Akagi. Within minutes, all three were ablaze and had to be abandoned with great loss of life. Hiryu managed to survive the wave of dive bombers and launched a counter-attack against the American carriers which caused severe damage to Yorktown (which was later finished off by a Japanese submarine). However, a second attack from the U.S. carriers a few hours later found and destroyed Hiryu, the last remaining fleet carrier available to Nagumo. With his carriers lost and the Americans withdrawn out of range of his powerful battleships, Yamamoto was forced to call off the operation, leaving Midway in American hands. The battle proved to be a decisive victory for the Allies. For the second time, Japanese expansion had been checked and its formidable Combined Fleet was significantly weakened by the loss of four fleet carriers and many highly trained, virtually irreplaceable, personnel. Japan would be largely on the defensive for the rest of the war.
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output: Yamamoto
Please answer this: Extract the answer to the question from the following context. Question: What should I try my best to avoid if I want to facilitate organomagnesium halide? Context: There are many important organozinc compounds. Organozinc chemistry is the science of organozinc compounds describing their physical properties, synthesis and reactions. Among important applications is the Frankland-Duppa Reaction in which an oxalate ester(ROCOCOOR) reacts with an alkyl halide R'X, zinc and hydrochloric acid to the -hydroxycarboxylic esters RR'COHCOOR, the Reformatskii reaction which converts -halo-esters and aldehydes to -hydroxy-esters, the SimmonsSmith reaction in which the carbenoid (iodomethyl)zinc iodide reacts with alkene(or alkyne) and converts them to cyclopropane, the Addition reaction of organozinc compounds to carbonyl compounds. The Barbier reaction (1899) is the zinc equivalent of the magnesium Grignard reaction and is better of the two. In presence of just about any water the formation of the organomagnesium halide will fail, whereas the Barbier reaction can even take place in water. On the downside organozincs are much less nucleophilic than Grignards, are expensive and difficult to handle. Commercially available diorganozinc compounds are dimethylzinc, diethylzinc and diphenylzinc. In one study the active organozinc compound is obtained from much cheaper organobromine precursors:
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Answer: water
Problem: Extract the answer to the question from the following context. Question: What was done for the 3rd Dalai Lama? Context: Of the third Dalai Lama, China Daily states that the "Ming dynasty showed him special favor by allowing him to pay tribute." China Daily then says that Sonam Gyatso was granted the title Dorjichang or Vajradhara Dalai Lama in 1587 [sic!], but China Daily does not mention who granted him the title. Without mentioning the role of the Mongols, China Daily states that it was the successive Qing dynasty which established the title of Dalai Lama and his power in Tibet: "In 1653, the Qing emperor granted an honorific title to the fifth Dalai Lama and then did the same for the fifth Panchen Lama in 1713, officially establishing the titles of the Dalai Lama and the Panchen Erdeni, and their political and religious status in Tibet."

A: Ming dynasty showed him special favor by allowing him to pay tribute
Problem: Given the question: Extract the answer to the question from the following context. Question: Which of the following is not a person: Mona Lisa Smile, Harrison Ford, or Steven Spielberg? Context: Several recent movies have been filmed in New Haven, including Mona Lisa Smile (2003), with Julia Roberts, The Life Before Her Eyes (2007), with Uma Thurman, and Indiana Jones and the Kingdom of the Crystal Skull (2008) directed by Steven Spielberg and starring Harrison Ford, Cate Blanchett and Shia LaBeouf. The filming of Crystal Skull involved an extensive chase sequence through the streets of New Haven. Several downtown streets were closed to traffic and received a "makeover" to look like streets of 1957, when the film is set. 500 locals were cast as extras for the film. In Everybody's Fine (2009), Robert De Niro has a close encounter in what is supposed to be the Denver train station; the scene was filmed in New Haven's Union Station.
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The answer is:
Mona Lisa Smile
Problem: Extract the answer to the question from the following context. Question: What is Incredible Hulk's real name? Context: Schwarzenegger drew attention and boosted his profile in the bodybuilding film Pumping Iron (1977), elements of which were dramatized; in 1991, he purchased the rights to the film, its outtakes, and associated still photography. In 1977, he also appeared in an episode of the ABC situation comedy The San Pedro Beach Bums. Schwarzenegger auditioned for the title role of The Incredible Hulk, but did not win the role because of his height. Later, Lou Ferrigno got the part of Dr. David Banner's alter ego. Schwarzenegger appeared with Kirk Douglas and Ann-Margret in the 1979 comedy The Villain. In 1980, he starred in a biographical film of the 1950s actress Jayne Mansfield as Mansfield's husband, Mickey Hargitay.

A:
David Banner