[{"from": "human", "value": "Write a possible SELFIES of given compound. ->  norethindrone acetate\n"}, {"from": "gpt", "value": " [C][C][=Branch1][C][=O][O][C][Branch2][Ring1][=C][C][C][C][C][C][C][C][=C][C][=Branch1][C][=O][C][C][C][Ring1][#Branch1][C][Ring1][O][C][C][C][Ring2][Ring1][C][Ring1][#C][C][C][#C]\n"}]