User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is a carbonate salt in which the counter-ion is iron in the +2 oxidation state. It is a carbonate salt, a one-carbon compound, an iron molecular entity and a carbonate mineral.
Assistant: This is a molecule that fits this description: O=C([O-])[O-].[Fe+2]
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
iron(2+);carbonate
The molecule is a carbonate salt in which the counter-ion is iron in the +2 oxidation state. It is a carbonate salt, a one-carbon compound, an iron molecular entity and a carbonate mineral.