C[C@H](N)C(=O)N[C@H](C(=O)N1CCC[C@H]1C(=O)OCc1ccccc1)C1CCCCC1.O=C(O)C(F)(F)F
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?