Cc1c(C(=O)Nc2cccc(F)c2)sc2nc(-c3cc4ccccc4oc3=O)[nH]c(=O)c12
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?