Nc1ccc(C(=O)N/C(=C\C=C\c2ccco2)c2nc3c4c(ccc3[nH]2)C(=O)c2ccccc2C4=O)cc1
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?