[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a polyunsaturated fatty aldehyde that is octanal which has 3 double bonds at positions 2, 4 and 6. The configuration of the double bonds is unknown. It is a medium-chain fatty aldehyde, a polyunsaturated fatty aldehyde and an enal."}, {"from": "gpt", "value": "[C][/C][=C][/C][=C][/C][=C][/C][=O]"}]