input: Please answer the following: Determine the topic of the question-answer pair. Question: "who created the tourbillon movement??"; Answer: "Developed around 1795 by the French-Swiss watchmaker Abraham-Louis Breguet from an earlier idea by the English chronometer maker John Arnold , a tourbillon aims to counter the effects of gravity by mounting the escapement and balance wheel in a rotating cage, to negate the effect of gravity when the timepiece (thus the escapement) is stuck in a certain position."? Topic:
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output: Tourbillon

input: Please answer the following: Determine the topic of the question-answer pair. Question: "what people used mayan numeral system?"; Answer: "Maya numerals are a vigesimal ( base - twenty ) numeral system used by the Pre-Columbian Maya civilization ."? Topic:
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output: Maya numerals

input: Please answer the following: Determine the topic of the question-answer pair. Question: "who discovered the 2 moons of mars,Phobos and Deimos?"; Answer: "Both satellites were discovered in 1877 by Asaph Hall and are named after the characters Phobos (panic/fear) and Deimos (terror/dread) who, in Greek mythology , accompanied their father Ares , god of war, into battle."? Topic:
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output: Moons of Mars

input: Please answer the following: Determine the topic of the question-answer pair. Question: "what movement was elizabeth cady stanton a part of?"; Answer: "Elizabeth Cady Stanton (November 12, 1815 October 26, 1902) was an American social activist , abolitionist, and leading figure of the early women's rights movement ."? Topic:
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output:
Elizabeth Cady Stanton