In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Q: One reactant for this reaction is best prepared by an S N 2 nucleophilic addition of a triphenyl compound, followed by elimination of the hydrogen halide by an organolithium reagent. This reaction itself proceeds through a rather unique intermediate formed when the pi electron from the reagents carbon-oxygen double bond migrates to the positively charged pole of one reactant; this intermediate is called a an oxaphosphetane, from which a triphenyl oxide is eliminated to complete the reaction. The aforementioned positively charged pole is on phosphorous because the aforementioned prepared reactant is a phosphorous ylide. For ten points, name this reaction that produces selectively double-bonded alkenes from aldehydes and phosphorous ylides and that is named for the German 1979 Chemistry Nobel winner.

A: Science
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Q: When reacted with a nitrile, they produce an imine anion that can be hydrolyzed into a ketone, and they can cause nucleophilic ring opening of epoxides. Pouring a solution of them over dry ice followed by protonation results in carboxylic acids, which will not form addition products with these. One of their most common uses is reacting with aldehydes and ketones to form secondary and tertiary alcohols, respectively. Because they essentially act as carbanions, they can be protonated by weak acids to yield alkanes. FTP name these organometallic reagents that are formed by reacting an alkyl halide with magnesium, named for their French discoverer.

A: Science
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Q: In one of this writer's poems, Saturn, who is "quiet as a stone, / Still as the silence round about his lair", sits in "the shady sadness of a vale". The speaker asks "Where are the songs of Spring Ay, where are they" in another of his poems, which describes a "Season of mists and yellow fruitfulness". This poet of the unfinished "Hyperion" and "To (*) Autumn" also wrote a poem addressed to a "light-winged Dryad of the trees". Another one of his poems describes a "foster-child of Silence and slow Time" and concludes by stating that "Beauty is truth, truth Beauty." For ten points, name this English poet of "Ode to a Nightingale" and "Ode on a Grecian Urn."

A:
Literature
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