CC(=O)O[C@H]1CCC2[C@@H]3CCC4Cc5nc6c(nc5C[C@]4(C)C3CC[C@@]21C)CC1CC[C@@H]2C(CC[C@@]3(C)C2CC[C@@H]3C(C)CCCC(C)C)[C@@]1(C)C6
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?