CC(C)=CC(=O)c1[nH]c2ccccc2c1CC(=O)NCCc1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cn1
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?