[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a polyprenyl diphosphate. It is a conjugate acid of an (E)-3,7,11,15-tetramethylhexadec-2-en-1-yl diphosphate(3-)."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C][C][C][Branch1][C][C][C][C][C][C][Branch1][C][C][C][C][C][/C][=Branch2][Ring1][Ring2][=C][/C][O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O][/C]"}]