COc1cc(C[C@]2(C)[C@@H](C)CC[C@]3(C)[C@@H](CO)CCC[C@H]32)c(Cl)c(OC)c1
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?