Cc1ccc(S(=O)(=O)N[C@@H](CC(C)C)C(=O)N2CCC(C(=O)N[C@H](C(=O)O)C(C)C)CC2)cc1
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?