[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Ecklonia cava, Padina tetrastromatica, and other organisms with data available."}, {"from": "gpt", "value": "[C][C][Branch2][Ring2][#Branch2][C][Branch2][Ring2][Branch1][C][Branch1][#Branch2][O][C][Ring1][=Branch1][C][=Branch1][C][=O][O][O][C][C][Branch2][Ring1][C][C][Branch1][=C][C][Branch1][#Branch2][O][C][Ring1][=Branch1][C][=Branch1][C][=O][O][O][O][O][O][O]"}]