O=C(Nc1ccn(Cc2c(F)c(F)cc(F)c2F)n1)c1ccc(COc2ccccc2Cl)cc1
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?