O=[N+]([O-])c1ccc2c(c1)/C(=N/N=C1c3ccccc3Cc3ccccc31)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1-2
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?