[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a deuterated compound that is succinic acid in which the four methylene hydrogens are replaced by deuterium. It is a deuterated compound, an alpha,omega-dicarboxylic acid and a C4-dicarboxylic acid."}, {"from": "gpt", "value": "[2H][C][Branch1][C][2H][Branch1][=Branch1][C][=Branch1][C][=O][O][C][Branch1][C][2H][Branch1][C][2H][C][=Branch1][C][=O][O]"}]