User: I need a molecule that is not an extremely flammable gas.
Assistant: Here is a molecule that is not an extremely flammable gas: O=C(OCc1ccccc1)ON1C(=O)CCC1=O.
User: I need a molecule that is {H220#not &NULL}{H220__names__noun}.
Assistant: Here is a molecule that is {H220#not &NULL}{H220__names__noun}: {SMILES#}.