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.

Input: Consider Input: The oxidation of one of these compounds with a Jones reagent yields carboxylic acid, and they are the product of the reaction of a ketone with a Grignard reagent. Esters are formed via a reaction of carboxylic acid and this compound in a process named for Fischer. Consisting of a hydroxyl group bonded to a carbon atom, they are given the formula R-OH. For 10 points, name this class of compounds exemplified by methanol and ethanol, the latter of which is found in hand sanitizer and beer.

Output: Science


Input: Consider Input: Coombs tests detect these bodies bound to erythrocytes, and a technique that uses these entities is ELISA. These molecules have a namesake fold, in which two beta sheets are held together by amino acid charges. These adaptable molecules can somatically recombine in a process called V(D)J recombination and are also capable of changing isotype by altering conformation of their heavy chains. Like enzymes, they operate via a a so-called "lock-and-key" mechanism, as verified by Linus Pauling. FTP, name these characteristically y-shaped immune molecules exploited in vaccination and produced by B cells in response to specific antigens.

Output: Science


Input: Consider Input: The Ruzicka cyclization reaction can be used to produce cyclic versions of these compounds, and the Fries rearrangement converts a phenyl ester to a hydroxyl aryl version of these compounds. Methyl varieties of these and a related type of compounds can be detected using the haloform test, and they exhibit tautomerism with enols. These compounds are reduced to tertiary alcohols, and they do not form a silver mirror in the presence of the Tollens reagent, unlike the similar aldehydes. For 10 points, identify this class of compounds which contains two alkyl groups bound to a carbonyl atom, and whose best known member is acetone.


Output: Science