[{"from": "human", "value": "Could you provide a description of this molecule? [C][O][C][=C][Branch2][Ring1][Branch2][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C@@H1][C@H1][C][O][C][=Branch1][C][=O][C@H1][Ring1][=Branch1][C][O][Ring1][=Branch2][O]"}, {"from": "gpt", "value": "The molecule is a lignan that is tetrahydro-1H,3H-furo[3,4-c]furan-1-one carrying a 4-hydroxy-3-methoxyphenyl substituent at position 4. It has a role as a plant metabolite. It is a lignan, a gamma-lactone, a furofuran and a member of guaiacols."}]