[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][Ring1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Ring1][C]"}, {"from": "gpt", "value": "The molecule is a berberine alkaloid, an isoquinoline alkaloid fundamental parent and an organic heterotetracyclic compound."}]