[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C@H1][Branch2][Ring1][Branch2][C][O][C@@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][O][C][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][/C][=C][\\C][C][C][C][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a 2,3-diacyl-1-alpha-D-galactosyl-sn-glycerol in which the groups at the 2- and 3-positions are oleoyl and palmitoyl respectively. It has a role as an antigen."}]