O=C(c1c(F)c(F)c(F)c(F)c1F)n1c(=S)n(C(=O)c2c(F)c(F)c(F)c(F)c2F)c2ccccc21
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?