O=C(Nc1cccc(Cl)c1)C1C2C=CC3(O2)C1C(=O)N(CCCN1CCCCC1)C3C(=O)NC1CCCCC1
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?