[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an isoform of methylhippuric acid where the methyl and glycine groups are bound to carbon-1 and carbon-2 on the benzene ring, respectively. Since 2-methylhippuric acid (2-MHA) is a metabolite of o-xylene, the measurement of 2-MHA in urine may be correlated to a subject's level of xylene exposure."}, {"from": "gpt", "value": "[C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]"}]