[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an organic heterotetracyclic compound."}, {"from": "gpt", "value": "[C][C@@][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][Ring2][N][Ring1][#Branch2][C][=C][Ring1][N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Si][Branch1][C][C][Branch1][C][C][C]"}]