CC[C@H](C)[C@H](NC(=O)[C@H](C)NC)C(=O)N1CCC[C@H]1C(=O)NC1CCCc2ccccc21.O=CO
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?