[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a carbobicyclic compound and sesquiterpene that is 1,2,3,4,4a,5,6,7-octahydronaphthalene which is substituted a prop-1-en-2-yl group at position 3 and by methyl groups at positions 4a and 5 (the 3R,4aS,5R- diastereoisomer). It is a sesquiterpene, a carbobicyclic compound and a polycyclic olefin."}, {"from": "gpt", "value": "[C][C@@H1][C][C][C][=C][C@][Ring1][=Branch1][Branch1][=C][C][C@@H1][Branch1][Branch1][C][C][Ring1][=Branch1][C][=Branch1][C][=C][C][C]"}]