O=C1C=C2CC[C@H]3[C@@H]4CC[C@H](OC(=O)c5cccc6cc7ccccc7nc56)[C@H]4CC[C@@H]3[C@H]2CC1
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?