You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 9-[4-[2-methyl-3-[(1Z,3Z)-penta-1,3-dienyl]indol-1-yl]-8-[3-(4-phenylphenyl)phenyl]dibenzofuran-2-yl]carbazole into its molecular formula.
user
C56H40N2O
assistant