Cc1ccc([N+](=O)[O-])cc1S(=O)(=O)Nc1ccc(C(=O)/C=C/c2ccccc2)cc1
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?