You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-[2-[3-(3,4-difluorophenyl)-1,2,4-oxadiazol-5-yl]thiophen-3-yl]-2,5-difluorobenzamide into molecular formula.
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C19H9F4N3O2S
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