CCN1C=C(Cc2ccc(OC)cc2)C2=C(C1)C(c1ccc(OC)cc1)C(C#N)=C(N)O2
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?