[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an apo carotenoid monoterpenoid compound arising from oxidative degradation of the beta,beta-carotene skeleton at the 8'- and 15-positions. It is an enal, a dialdehyde and an apo carotenoid monoterpenoid."}, {"from": "gpt", "value": "[C][/C][=Branch1][Ring2][=C][\\C][=O][/C][=C][/C][=C][Branch1][C][\\C][/C][=O]"}]