[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a eudesmane sesquiterpenoid."}, {"from": "gpt", "value": "[C][C][C][C][C][C][Branch2][Ring1][Ring2][C][Ring1][=Branch1][C][C][Branch1][Branch1][C][C][Ring1][#Branch2][C][Branch1][C][C][Branch1][C][C][O][Branch1][C][C][O]"}]