C=C(C)C(=O)O[C@H]1C/C(CO)=C/CCC(=C)C(OC(C)=O)[C@H]2OC(=O)C(=C)[C@H]12
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?