CC(C)C[C@@H](CC(=O)N[C@H](CC(=O)N[C@@H]1CCNC[C@H]1C(=O)N[C@H](CC(=O)N[C@@H](CCC(=O)O)CC(=O)O)CC(C)C)C(C)C)NC(=O)[C@@H]1CCCC[C@H]1N
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?