instruction:
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.
question:
Pieces within this opera include the trio "Zitti, zitti" and the aria "Una voce poco fa." One character in this opera pretends to be the student Lindoro in order to deceive Dr. Bartolo. The title character of this opera repeatedly sings the phrase "della citta" in one aria. That title character aids Count Almaviva in wooing Rosina and sings the aria "Largo al Factotum." For 10 points, name this opera buffa about the servant Figaro, composed by Gioacchino Rossini.
answer:
Fine Arts

question:
One reaction to prepare these compounds adds diazomethylphosphonate esters to aldehydes under basic catalysis and generates vinyl-diazo intermediates. Along with aldehydes, these compounds are the degradation products of alpha, beta-epoxy tosylhydrazones in the Eschenmoser fragmentation. A coupling involving both palladium and copper catalysis, in which these compounds react with aryl halides, is the Sonogashira reaction. These compounds react with azides to form triazole rings in a well-known click-chemistry reaction, and terminal ones can be deprotonated by sodium amide. They are reduced to cis-alkenes by the poisoned Lindlar catalyst. This functional group is composed of two sp-hybridized carbons. For 10 points, name this functional group consisting of a carbon-carbon triple bond.
answer:
Science

question:
The Fibonacci type can notably perform many common operations with almost constant amortized cost, and they are often used to implement priority queues. Key to executing many graph algorithms, such as Dijkstras, they are often implemented in arrays with adjacent elements being widely separated by index. Its namesake sort has complexity bound of order n log n, and its nodes usually satisfy the property that the children are either consistently lesser or greater than their parents. For 10 points, name this tree-based data structure.
answer:
Science