O=Cc1ccc(OCc2cccc(COc3ccc(/C=N\Nc4ccc([N+](=O)[O-])cc4[N+](=O)[O-])cc3)n2)cc1
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?