[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a sesquiterpenoid."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch1][C][=O][C][C][Branch1][O][C][Ring1][#Branch1][/C][=C][/C][Branch1][C][C][O][Branch1][C][C][C]"}]