[{"from": "human", "value": "Generate a molecule based on this description. The molecule is the trianion resulting from the removal of the three protons from the diphosphate group of all-trans-pentaprenyl diphosphate; major species at pH 7.3. It is a conjugate base of an all-trans-pentaprenyl diphosphate."}, {"from": "gpt", "value": "[C][C][=Branch2][Branch1][Ring2][=C][C][C][/C][=Branch2][Ring2][N][=C][/C][C][/C][=Branch2][Ring2][Ring2][=C][/C][C][/C][=Branch2][Ring1][N][=C][/C][C][/C][=Branch2][Ring1][Ring2][=C][/C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O-1][/C][/C][/C][/C][C]"}]