CCCCCCCCCC[C@H](O)[C@H]1CC[C@H]([C@H]2CC[C@H]([C@H](O)CC[C@H](O)CCCCCCC[C@@H](O)CC3=C[C@H](C)OC3=O)O2)O1
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?