User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is an iron sulfide mineral with formula Fe3S4. It has a role as a catalyst. It is a sulfide mineral, a member of iron(2+) sulfides and a member of iron(3+) sulfides.
Assistant: This is a molecule that fits this description: [Fe+2].[Fe+3].[Fe+3].[S-2].[S-2].[S-2].[S-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#}
[Fe+2].[Fe+3].[Fe+3].[S-2].[S-2].[S-2].[S-2]
iron(2+);iron(3+);tetrasulfide
The molecule is an iron sulfide mineral with formula Fe3S4. It has a role as a catalyst. It is a sulfide mineral, a member of iron(2+) sulfides and a member of iron(3+) sulfides.