[{"from": "human", "value": "Describe this molecule. [C][C][=C][C@@H1][C@H1][Branch1][Branch1][C][C][Ring1][=Branch1][C][=Branch1][O][=C][C][C@H1][Ring1][Branch2][C][Branch1][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene that is 1,2,4a,5,6,8a-hexahydronaphthalene which is substituted at position 1 by an isopropyl group and at positions 4 and 7 by methyl groups (the 1S,4aS,8aR-diastereoisomer). It is a sesquiterpene and a carbobicyclic compound."}]