CC[C@]1(Cc2ccc(OC)c(OC)c2)C=[N+]([O-])O[C@H](OC2CCCC2(c2ccccc2)c2ccccc2)[C@@H]1OC(C)=O
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?