[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a polyunsaturated very long-chain fatty acid with a 22-carbon backbone and exactly 2 double bonds, originating from either the 6th and 9th or the 9th and 17th positions from the methyl end."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C][=C][/C][=Branch1][C][=O][O]"}]