O=C(c1ccccc1)N(C(=O)c1ccccc1)c1ncnc2c1C(c1ccccc1)c1c(ccc3ccccc13)O2
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?