Nc1ccc(Oc2ccc(C34CC5CC6C3CC3CC4C(C5)C6(c4ccc(Oc5ccc(N)c(O)c5)cc4)C3)cc2)cc1O
The quantitative estimate of drug-likeness (QED) is the most commonly used quantitative drug efficacy assessment method. Please predict the molecule's qed.