You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-(10-naphthalen-1-yl-3,4-dihydroanthracen-9-yl)-1-(10-phenylanthracen-9-yl)-1,9b-dihydrodibenzothiophene .
user
C56H38S
assistant