[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a ketone."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch1][C][=O][C][C][Branch1][Branch2][C][Ring1][#Branch1][/C][=C][/C][=C][Branch1][C][C][C]"}]