COc1cc(NS(=O)(=O)c2ccc(NC(=S)NC(=O)c3cccs3)cc2)nc(OC)n1
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?