[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an apo carotenoid compound arising from oxidative degradation of the beta,beta-carotene skeleton at the 8'- and 13-positions. It is a dialdehyde, an enal and an apo carotenoid."}, {"from": "gpt", "value": "[C][/C][=Branch1][=Branch1][=C][\\C][=C][\\C][=O][/C][=C][/C][=C][Branch1][C][\\C][/C][=O]"}]