COc1ccc(/N=C(/SS/C(=N/c2ccc(OC)cc2)c2ccc([N+](=O)[O-])o2)c2ccc([N+](=O)[O-])o2)cc1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?