Br.Cc1sc(Nc2ccc(C#N)c(Cl)c2)nc1C(=O)O    SAMPL8-4    0_1
Br.Cc1sc([NH2+]c2ccc(C#N)c(Cl)c2)nc1C(=O)[O-]    SAMPL8-4    0_2
Br.Cc1sc(Nc2ccc(C#N)c(Cl)c2)[nH+]c1C(=O)[O-]    SAMPL8-4    0_3
Br.Cc1sc(Nc2ccc(C#N)c(Cl)c2)nc1C(=O)[O-]    SAMPL8-4    -1_1