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.

Example Input: The Keo Nua Pass in this country is one of the few passes through the Annamese Cordillera (CORE-dee-YARE-uh). This nation's capital includes the Temple of the Trung Sisters and is located on the Red River. The imperial citadel of Dai Noi is found in this country's onetime capital Hue (hway). For 10 points, name this Southeast Asian nation that was reunified in 1975 after a bloody war between the communist north and U.S.-aligned south.
Example Output: Social Science

Example Input: He gave the example of a chicken which comes to expect a never-ending source of food as it is fattened up only to one day then be slaughtered in a work which refuted inductive reasoning as a source of absolute certainty. In another of his works, he regards one of the titular activities as a Catholic practice designed to prevent incest, leading to his expulsion from a teaching post. In addition to The Problem of Philosophy and Marriage and Morals, he wrote The Scientific Outlook and delivered the Mans Peril broadcast on BBC. Jean-Paul Sartre attended his tribunal, where he exposed American atrocities in Vietnam, years after his winning the Nobel prize in 1950 for literature. His most famous work developed the theory of types in mathematical logic. For ten points, name this philosopher who wrote Principia Mathematica along with Alfred North Whitehead.
Example Output: Social Science

Example Input: Slutsky's equation relates two functions for this quantity. As price increases, this quantity increases for lower-priced goods in the substitution effect. The "Hicksian" variety of this quantity is often contrasted with its "Marshallian" type. Although it increases with price for Veblen goods, this quantity is usually (*) inversely correlated with price. For 10 points, name this concept, often paired with supply, which represents the public's desire for a product.
Example Output:
Social Science