[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a 2-methyl-3-oxosuccinic acid. It is an enantiomer of a (R)-2-methyl-3-oxosuccinic acid."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][#Branch2][C][=Branch1][C][=O][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}]