C=C(C)COc1cc2oc(=O)c(CC(=O)N3C[C@@H]4C[C@H](C3)Cn3c4cccc3=O)c(C)c2cc1Cl
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?