O=C(C[C@@H]1C/C=C\C[C@H](Cc2ccc(F)cc2)C(=O)OC[C@@H](Cc2c[nH]c3ccccc23)NC1=O)NCCO
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?