The SMILES O=C1CC(=O)N(c2ccc(Cl)cc2Cl)C(=O)N1 is from a molecule that is not a hERG blocker.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {herg_inhib#not &NULL}a {herg_inhib__names__noun}.