C=C1[C@]2(C)C=C(C)[C@@H](n3c(=O)n(-c4ccccc4)c(=O)n32)[C@]1(C)[C@@H]1CCCS1
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?