[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][C][C][=C][C][Ring1][Branch1][C][Ring1][Branch2]"}, {"from": "gpt", "value": "The molecule is a carbobicyclic compound consisting of two ortho-fused cyclopentane rings and containing one double bond located at position 2. It is a polycyclic olefin and a carbobicyclic compound."}]