[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a long-chain fatty acid and a deuterated fatty acid."}, {"from": "gpt", "value": "[2H][C][Branch1][C][2H][Branch1][Ring2][C][C][O][C][Branch1][C][2H][Branch1][C][2H][C][Branch1][C][2H][Branch1][C][2H][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][/C][=C][\\C][C][C][C][=Branch1][C][=O][O]"}]