COC(=O)[C@H](C)[C@H]1CC[C@@](C)(C2CC3C(C)(C)[C@H]4CCC(C)=C[C@H]4C[C@@]3(C)O2)OO1
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?