Cc1c(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)c(CO)c(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)c2c1O[C@@H](c1ccccc1)C[C@@H]2O
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?