CN(CCCNC(=O)c1cn(C)c2c1ccc1cc(Cl)ccc12)CCCNC(=O)c1cn(C)c2c1ccc1cc(Cl)ccc12
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?