O=c1nc2n(c(O)c1C(c1ccc(F)cc1)c1c(O)nc3n(c1=O)CCCS3)CCCS2
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?