O=S(=O)(Oc1ccc2oc3ccccc3c2c1-c1c(OS(=O)(=O)C(F)(F)F)ccc2oc3ccccc3c12)C(F)(F)F
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?