[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Psidium guajava and Piper nigrum with data available."}, {"from": "gpt", "value": "[C][C][Branch2][Ring1][Ring2][C][C@@H1][C@H1][Ring1][Ring2][C][C][/C][=Branch1][Branch2][=C][\\C][C][C][Ring1][=Branch2][=C][/C][O][C]"}]