CCc1ccc2oc(-c3ccc(OC)cc3)cc(=[NH+]c3c(C)n(C)n(-c4ccccc4)c3=O)c2c1.F[B-](F)(F)F
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?