[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an Fe4S4 iron-sulfur cluster in which each sulfur is attached to three of the iron atoms. It has a role as a cofactor."}, {"from": "gpt", "value": "[SH3+1].[SH3+1].[SH3+1].[SH3+1].[Fe].[Fe].[Fe].[Fe]"}]