You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5,14-bis[3-(3-dibenzothiophen-4-ylphenyl)phenyl]tricyclo[9.4.0.03,8]pentadeca-1(11),3(8),4,6,12,14-hexaen-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C63H40OS2
assistant