[{"from": "human", "value": "Describe this molecule. [C][Branch2][Ring1][Ring1][C@H1][Branch1][#C][C@H1][Branch1][O][C@][Branch1][Ring1][C][O][Branch1][Ring1][C][=O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is an aldopentose comprising D-ribose having a hydroxymethyl group at the 2-position. It is functionally related to a D-ribose."}]