[{"from": "human", "value": "Could you provide a description of this molecule? [C][=Branch1][Ring1][=C][\\O][\\O]"}, {"from": "gpt", "value": "The molecule is a diol that is ethene substituted at positions 1 and 2 by hydroxy groups (the Z-geoisomer). It is an enol and a diol. It is functionally related to an ethene. It is a tautomer of a glycolaldehyde."}]