O=C(/C=C/c1ccc(O)c(O)c1)OC1C(O)CC(OC(=O)/C=C/c2ccc(O)c(O)c2)(C(=O)O)CC1O
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?