[{"from": "human", "value": "What can you tell me about this molecule? [C][C@H1][C@@H1][Branch1][S][C@H1][Branch1][N][C@H1][Branch1][Branch2][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is an L-rhamnopyranose having alpha-configuration at the anomeric centre. It has a role as an epitope."}]