O=[N+]([O-])c1cc(S(=O)(=O)[O-])cc([N+](=O)[O-])c1NN(c1ccccc1)c1ccccc1.[K+]
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?