[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a tetritol that is erythritol substituted by a methyl group at position 2. It has a role as a human metabolite. It is functionally related to an erythritol."}, {"from": "gpt", "value": "[C][C@@][Branch1][Ring1][C][O][Branch1][#Branch1][C@H1][Branch1][Ring1][C][O][O][O]"}]