[{"from": "human", "value": "Provide a description of this molecule. [C][C][=Branch2][Branch1][O][=C][C][C][/C][=Branch2][Branch1][Ring1][=C][/C][C][/C][=Branch2][Ring2][O][=C][/C][=C][/C][=Branch2][Ring2][Ring1][=C][/C][=C][/C][=C][Branch1][C][/C][\\C][=C][\\C][=C][Branch1][C][/C][\\C][=C][\\C][=C][Branch1][C][/C][\\C][=C][\\C][C][Branch1][C][C][Branch1][C][C][O][C][/C][/C][/C][C]"}, {"from": "gpt", "value": "The molecule is the cartenoid ether that is the methyl ether of (3E,13cis)-3,4-didehydro-1,2,7',8'-tetrahydro-psi,psi-caroten-1-ol"}]