FC(F)(F)c1cc(C(F)(F)F)c2ccc(N3CCN(c4ccc(Cl)cc4)CC3)nc2n1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?