[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a longifolene. It is an enantiomer of a (+)-longifolene."}, {"from": "gpt", "value": "[C][C@@][C][C][C][C][Branch1][=C][C@H1][C@@H1][Ring1][#Branch1][C][C][C@H1][Ring1][Branch1][C][Ring1][O][=C][Branch1][C][C][C]"}]