[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an enone with a trimethylcyclohexenyl substituent at C-1. It has a role as a fragrance and an allergen."}, {"from": "gpt", "value": "[C][/C][=C][/C][=Branch1][C][=O][C][C][=Branch1][O][=C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C]"}]