c1ccc(-c2nnc(-c3ccccn3)c3c2C[C@H]2C[C@H]4Cc5c(-c6ccccn6)nnc(-c6ccccn6)c5[C@H]4[C@@H]32)nc1
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?