O=C(OC(c1ccc(NS(=O)(=O)c2ccccc2)cc1)(C(F)(F)F)C(F)(F)F)c1ccc([N+](=O)[O-])cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?