[{"from": "human", "value": "Provide a description of this molecule. [C][C@H1][C@H1][Branch2][Branch1][O][C@H1][Branch2][Branch1][=Branch1][C@@H1][Branch2][Ring2][P][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][Ring2][C@H1][Branch2][Ring1][#C][C@H1][Branch2][Ring1][=Branch2][O][C@H1][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][C][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a trisaccharide that is lactose in which the hydroxy group at the 2' positions has been glycosylated by an alpha-L-fucopyranosyl group. It is the most abundant human milk oligosaccharide. It is functionally related to a lactose and an alpha-L-fucose."}]