COC(=O)c1c(C)sc(-c2c(-c3ccc(F)cc3)[nH]c3[nH]c(=O)[nH]c(=O)c23)c1O
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?