You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 5-(4-hydroxybut-1-ynyl)-N-(2-methyl-1,2,4-triazol-3-yl)pyridine-2-carboxamide is given. What is its corresponding molecular formula?
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C13H13N5O2
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