[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a member of the class of iron(3+) sulfides that has formula Fe2S3. A black powder, it decomposes at room temperature to give iron(2+) chloride, hydrogen sulfide, and sulfur."}, {"from": "gpt", "value": "[S-2].[S-2].[S-2].[Fe+3].[Fe+3]"}]