O=C1N(S(=O)(=O)c2ccccc2F)C(=O)C2(CCCC2)N1S(=O)(=O)c1ccccc1F
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?