C=CCn1c(-c2ccc(/N=N/Nc3ccc(-c4n[nH]c(=S)n4CC=C)cc3)cc2)n[nH]c1=S
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?