Chemist: Give me a molecule that is not a fire hazard.
Assistant: Here is a molecule that is not a fire hazard: S=c1[nH][nH]c(=S)s1.
Chemist: {#Give me|Propose|Come up with!} a molecule that is {H208#not &NULL}{H208__names__noun}.
Assistant: Here is a molecule that is {H208#not &NULL}{H208__names__noun}: {SMILES#}.