Chemist: Give me a molecule that is not self-heating in large quantities.
Assistant: Here is a molecule that is not self-heating in large quantities: CCC(C)(C)C(=O)O.
Chemist: {#Give me|Propose|Come up with!} a molecule that is {H252#not &NULL}{H252__names__adjective}.
Assistant: Here is a molecule that is {H252#not &NULL}{H252__names__adjective}: {SMILES#}.