Nc1ccc2c(c1)ncn2-c1ccccc1    SM14    0_1
[NH3+]c1ccc2c(c1)ncn2-c1ccccc1    SM14    1_1
Nc1ccc2c(c1)[nH+]cn2-c1ccccc1    SM14    1_2
[NH3+]c1ccc2c(c1)[nH+]cn2-c1ccccc1    SM14    2_1