C=C[C@H]1CN2CCc3c([nH]c4cc(O)ccc34)[C@@H]2C[C@@H]1C[C@H]1c2[nH]c3ccccc3c2CCN1C.Cl
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?