[{"from": "human", "value": "Provide a brief overview of this molecule. [C][Branch2][Ring2][O][C@@H1][C@H1][Branch2][Ring2][Branch1][C@@H1][Branch2][Ring1][S][C@@H1][Branch2][Ring1][O][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@H1][Branch1][=C][O][C][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a disaccharide that is D-galactopyranose in which the hydroxy group at position 4 has been converted into the corresponding beta-D-mannopyranoside. It is a glycoside and a glycosylgalactose. It is functionally related to a beta-D-mannose and a D-galactopyranose."}]