C[C@@H]1[C@H]2C3=CC[C@@H]4[C@]5(C)C[C@H](O)[C@@H](O)[C@@](C)(CO)[C@@H]5[C@H](O)C[C@]4(C)[C@]3(C)CC[C@@]2(C(=O)O)CC[C@H]1C
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?