C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)S(C)(=O)=O)Oc2ccc(NC(=O)Nc3cccc4ccccc34)cc2CC1=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?