COc1ccc(C2C(C#N)=C(N)Oc3c2c(C)nn3-c2ccccc2)cc1Cn1nc(C)c([N+](=O)[O-])c1C
Aromatic rings (also known as aromatic compounds or arenes) are hydrocarbons which contain benzene, or some other related ring structure. How many aromatic rings does the molecule contain?