CC[C@@H](C)[C@H](NC(=O)C1CCN(C(=O)[C@@H](NS(=O)(=O)c2ccc(C)cc2)C(C)C)CC1)C(=O)O
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?