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: One protein that binds to this protein also binds to proline-rich sequences in the membrane proteins Vasp and Mena, and another is knocked out in the singed mutant. Phosphatidyl-inositol-4,5-bisphosphate regulates the binding of vinculin to both talin and this other protein, whose function is performed by nematode Major Sperm Protein in the only (*) eukaryotic cells known to lack one form of it. In addition to the aforementioned profilin and facsin, severin and gelsolin bind to this protein and sever it. Two toxins often used to study it are cytochalasins and phalloidin. Thymosin 4 sequesters this protein, which undergoes treadmilling because the critical concentration at its (+) and (-) ends is not the same. This protein consists of G monomers which polymerize into F filaments, which make up the microfilaments of the cytoskeleton. For 10 points, name this protein that forms cross-bridges with myosin in muscle cells.

Output: Science


Input: Consider Input: In one opera by this composer set in Stockholm, the fortune-teller Ulrica prophesizes that Riccardo will be killed by the next man who shakes his hand. This composer of A Masked Ball included "Va, pensiero," or the Chorus of the Hebrew Slaves, in an opera which details the exile of the Jews from Babylon, Nabucco. In addition to the drinking song "Libiamo ne' lieti calici" in an opera about Alfredo and Violetta, this composer wrote an opera which sees the Duke of Mantua sing "La donna e mobile" and another opera about an Egyptian princess. For 10 points, name this Italian composer of Rigoletto, La traviata, and Aida.

Output: Fine Arts


Input: Consider Input: The Delft Island is located off of this country, and Mundal Lake lies along its west coast. One can observe estuarine crocodiles from the Kirindi Oya river in the Bundala National Park located in this country. The Kalu River is the second longest river in this country and to its west lies the Gulf of Mannar. The Knuckles mountain range is located in this country, and the city of Jaffna is located in its north. The Esala Perahara is an important festival in a city which houses the Asigiriya Cricket stadium, and visitors there should not miss the temple containing the sacred tooth of the Buddha. In addition to Kandy, this country's gem shopping center is located at Ratnapura, and one can see several ancient Buddhist sites in the city of Anuradhaputra. Somehow connected to its northern neighbor via Adam's Bridge, for 10 points, identify this country whose largest city is Colombo.


Output: Social Science