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