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: 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.

Output: Science


Input: Consider Input: Spin foam serves as a model for 4-geometries used to dynamically observe the quantum form of this force. Mossbauer spectroscopy of an iron-57 gamma emitter was used to measure Doppler redshift associated with this force in the Pound-Rebka experiment, and two lead balls were used to construct a torsion balance to measure the magnitude of this force in the Cavendish experiment. Conceptualized by wells in spacetime, for 10 points, identify this weakest fundamental force that causes objects in the air to accelerate to Earth at 9.8 meters per second squared.

Output: Science


Input: Consider Input: thinker used the term "hexis" to describe acquired characteristics that must be maintained, like health and virtue. In one work, he argued that the highest virtue is thoughtful wisdom. In another work, this author discussed the ideal "complex" plot that incorporates reversals, recognitions, and suffering. This man's treatise on "being qua being" is titled for its position after his treatise Physics, and founded the discipline of metaphysics. In another work, this thinker theorized that the purpose of tragedy is to purge pity and terror, a process called catharsis. For 10 points, name this Greek philosopher who wrote the Nichomachean Ethics and the Poetics.


Output: Social Science