[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=C][N][Branch1][#Branch2][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][C@H1][C][C@@H1][Branch2][Ring2][O][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C@H1][C][C@@H1][Branch1][#Branch1][O][C@@H1][Ring1][Branch1][C][O][N][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][C][O]"}, {"from": "gpt", "value": "The molecule is an oligonucleotide comprised of two thymidine residues connected via a 3'->5' phosphodiester linkage. It contains a dTMP 3'-end residue."}]