CN(C)c1ccc(-c2c(C#N)c(-c3ccccc3)n(NS(=O)(=O)c3ccccc3)c(=O)c2C#N)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?