O=c1nc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)ccn1CCNCCn1ccc(NC(c2ccccc2)(c2ccccc2)c2ccccc2)nc1=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?