User: I need a molecule that is not an oxidizer.
Assistant: Here is a molecule that is not an oxidizer: CCOC(=O)/C(C#N)=N/O.
User: I need a molecule that is {H270#not &NULL}{H270__names__noun}.
Assistant: Here is a molecule that is {H270#not &NULL}{H270__names__noun}: {SMILES#}.