N#Cc1c(NC(=O)CSc2n[nH]c(Cc3ccccc3)n2)oc(-c2ccccc2)c1-c1ccccc1
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?