The SMILES O=[N+]([O-])c1cc([N+](=O)[O-])c2cccnc2c1O represents a molecule that is not a hERG blocking compound.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.