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.

[EX Q]: This reaction is combined with an aldol condensation to produce cyclohexenones in a process named for Robinson, and a variation of this uses silyl ethers and titanium tetrachloride, in a reaction named also for Mukaiyama. In a process analogous to this reaction, performed with simple ketones, the equilbrium is shifted towards the reagents, unlike in the Claisen and aldol condensations, necessitating the use of an enolate in conjugate addition to produce the 1,4-addition. For 10 points, what is this reaction named for an American chemist, which consists of the addition of a carbanion to an alpha, beta unsaturated carbonyl
[EX A]: Science

[EX Q]: One figure with this name defeated the rebel George Maniakes, and married his daughter to the son of Yaroslav the Wise. Another figure of this name convened the Sixth Ecumenical Council and condemned monothelitism as heresy before being defeated by the Bulgarian Khan Asparukh at the battle of Ongal. One man by this name ruled the Despotate of Morea before overcoming his brother Demetrios to obtain his most famous title, and that figure died anonymously shortly after the death of Giovanni Giustiniani. The most famous figure of this name executed his son Crispus after defeating Licinius. For 10 points, give this name whose most famous bearer crushed Maxentius at the Battle of Milvian Bridge before moving his capital to Byzantium, which he renamed after himself
[EX A]: History

[EX Q]: One character in this work pretends to sing a fashionable song from "The Vain Precaution" in a scene that ends in the quintet "Buona Sera". This opera's tenor pretends to be a drunken soldier when he meets the servant girl Berta, while in the aria "Calumny is a little breeze", Doctor Bartolo receives advice from Don Basilio. Its popular overture was intended for its composer's Aureliano in Palmira, while its first act sees Rosina describe her love for Lindoro in "Una voce poco fa". This opera's title character first appears singing the aria "Largo al Factotum" and aids Count Almaviva in wooing Rosina. For 10 points, name this opera about Figaro, composed by Gioacchino Rossini.
[EX A]:
Fine Arts