[{"from": "human", "value": "Provide a description of this molecule. [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]"}, {"from": "gpt", "value": "The molecule is a longifolene. It is an enantiomer of a (+)-longifolene."}]