C[C@@]12CCC=C[C@H]1[C@H](c1ccc3ccccc3c1/C=C/c1ccccc1)N(Cc1ccccc1)C2=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?