O=C(CCS(=O)(=O)c1nc(-c2cccs2)cc(C(F)(F)F)n1)Nc1cccc(O)c1
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?