[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a carbohydrate acid derivative anion obtained by deprotonation of the carboxy groups of hyaluronic acid; major species at pH 7.3. It is a polyanionic polymer and a carbohydrate acid derivative anion. It is a conjugate base of a hyaluronic acid."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch1][#C][C@@H1][Branch1][O][C@H1][Branch1][=Branch1][O][C@H1][Ring1][=Branch1][O][C][O][O][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O-1][O][O][O]"}]