User: I'm looking for the SMILES of a molecule that not blocks hERG?
Assistant: This is a molecule that is not a hERG blocker: NC(=O)NOC[C@H]1NC(=O)NC1=O
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that {herg_blocker#not &NULL}{herg_blocker__names__verb}?
Assistant: This is a molecule that is {herg_blocker#not &NULL}a {herg_blocker__names__noun}: {SMILES#}
[(4R)-2,5-dioxoimidazolidin-4-yl]methoxyurea