C=C(C)[C@H]1Cc2oc(cc2C(=O)OC)[C@H](C(=C)C)[C@H]2C=C(C(=O)O2)[C@H](O)[C@@H]1O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?