N#C/C(C(=O)NCc1ccco1)=C1/SC(Cc2ccc(Cl)cc2)C(=O)N1c1ccccc1
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?