CCOC(=O)/C=C(\N=P(c1ccccc1)(c1ccccc1)c1ccccc1)C(F)(F)C(F)(F)C(F)(F)C(F)(F)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?