You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 5,7,9,14,16,18-hexaoxatetracyclo[8.8.2.04,20.013,19]icosa-1(19),2,4(20),10,12-pentaene-6,8,15,17-tetrone .
user
C14H4O10
assistant