C=C1C(=O)[C@]23C[C@H]1CC[C@H]2[C@]1(C)[C@@H](OC(C)=O)CC[C@@](C)(C(=O)O)[C@H]1C[C@@H]3O
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?