User: I need a molecule that is not spontaneously catches fire if exposed to air.
Assistant: Here is a molecule that is not spontaneously catches fire if exposed to air: FC(F)(F)CC[Si](Cl)(Cl)Cl.
User: I need a molecule that is {H250#not &NULL}{H250__names__adjective}.
Assistant: Here is a molecule that is {H250#not &NULL}{H250__names__adjective}: {SMILES#}.