CC(C)C[C@H]1CNC(=S)N1C[C@H]1CCCN1C[C@H](Cc1ccccc1)N1C[C@H](CC(C)C)N(CCc2ccccc2)C1=S
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?