Cc1ccccc1Nc1nc(Cl)nc2ccccc12    SAMPL8-15    0_1
Cc1ccccc1[NH2+]c1nc(Cl)nc2ccccc12    SAMPL8-15    1_1
Cc1ccccc1Nc1nc(Cl)[nH+]c2ccccc12    SAMPL8-15    1_2
Cc1ccccc1Nc1[nH+]c(Cl)nc2ccccc12    SAMPL8-15    1_3