CCCCCNC(=O)[C@H](Cc1ccc(N(C(=O)C(=O)O)c2ccccc2C(=O)O)c(/C=C/C(N)=O)c1)NC(=O)[C@H](Cc1ccccc1)NC(=O)CCC(=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?