CN(C)C(=O)c1cccc(-c2cc(NC=O)c3ncc(-c4ccc(F)cc4)n3c2)c1
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?