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 Input:
General Herr, who had raised the alarm prior to this battle about the decision to remove all emplaced guns smaller than 75mm, spent most of it in the Caures Woods following the "Trommelfeuer. " Historical debate exists about the veracity of the "Christmas Memo" of Falkenhayn regarding this battle, which saw a heroic stand at Fort Souville. It saw a massive supply operation from Bar-le-Duc along the (*) "Sacred Way," and turned when Robert Nivelle crucially recaptured Fort Douaumont. The Somme offensive was partially launched to relieve this attack, which saw the Germans pushed back to the banks of the Meuse. Lasting nearly a year across 1916, FTP, identify this World War I battle occuring at a site that also names an 843 treaty which divided Charlemagen's empire.

Ex Output:
History


Ex Input:
Paulo Ribenboim proved in 1991 that the set of these is Diophantine, and in 1912 Edmund Landau proposed four "unattackable problems" dealing with them, none of which have yet been solved. The theorem named for them states that the number of them less than or equal to n is approximately equal to n divided by the natural logarithm of n. The GIMPS project seeks to find examples of the Mersenne type of this number, ordinary examples of which can be found using the sieve of Eratosthenes. For 10 points, identify these numbers whose only two factors are 1 and itself.

Ex Output:
Social Science


Ex Input:
In a paper concerning "Nilpotent Energies" in the theory of these materials, Ericksen explores a modulus undetermined in the Oseen-Frank hydrostatic theory of these materials. A statistical model of these materials relies on applying the molecular field approximation on a weak anisotropic pair potential and can easily be made more accurate by including terms for deviations from cylindrical symmetry, called Maier-Saupe theory. In one phase of these materials, named for its thread-like defects also called disinclinations, particles display orientational but no positional order. The layered and positionally ordered smectic phase, thus, contrasts with the higher-temperature nematic phase. The phase transitions of one class are modeled in the Onsager hard-rod model, and those "lyotropic" ones resemble the properties of some block copolymers, since they behave like these materials only in the appropriate concentration range. For 10 points, identify this class of substances that display an intermediate phase of matter by both flowing and exhibiting regular structure, notable for being used in flatscreen displays.

Ex Output:

Science