CN1c2ccccc2C(O)=C(C(S)=Nc2ccc(F)c(Cl)c2)S1(=O)=O
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?