CC(=O)/N=C1/N(/C=C2\C(=O)Oc3ccccc3C2=O)C(=O)/C(=C/c2ccc(Cl)cc2Cl)N1C
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?