User: I'm searching for the SMILES of a molecule that does not block hERG (<10uM)?
Assistant: This is a molecule that is not a human ether-à-go-go related gene (hERG) blocking compound (<10uM): CN1C(=O)c2c(nc(Cc3ccc(-c4ccccc4)cc3)n2Cc2ccccc2)N2CC3(CCCC3)N=C12
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that does {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#}
3-benzyl-5-methyl-2-[(4-phenylphenyl)methyl]spiro[8H-imidazo[2,1-b]purine-7,1'-cyclopentane]-4-one