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 11-methyl-14-azonia-1-phosphapentacyclo[10.7.1.02,7.08,20.014,19]icosa-2,4,6,8(20),9,11,14,16,18-nonaene .
user
C19H15NP+
assistant