O=C(OC(c1ccccc1)c1ccccc1)[C@@H]1[C@@H]2C(=O)N(c3ccccc3F)C(=O)[C@@H]2[C@H]2C=Cc3ccccc3N12
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?