[{"from": "human", "value": "Describe this molecule. [C][=C][Branch1][#Branch2][O][C][=Branch1][Ring2][=C][Ring1][Branch1][C][O][C][O]"}, {"from": "gpt", "value": "The molecule is a furan carrying two hydroxymethyl substituents at the 2- and 5-positions. It is a member of furans and a diol."}]