C[C@H](CCC(=O)O)[C@H]1CC[C@]2(C)[C@@H]3C(=O)C[C@H]4C(C)(C)[C@@H](O)CC[C@]4(C)[C@H]3C(=O)C[C@@]12C
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?