[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C@H1][C][C][C@@][Branch1][S][C@@H1][C@H1][Ring1][=Branch1][C@H1][Branch1][Branch1][C][Ring1][Branch1][=C][C][C][Ring1][#Branch1][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpene that is octahydro-1H-1,4-methanoindene bearing methyl, isopropyl and methylene substituents at positions 4, 7 and 8 respectively (the 1R,3aS,4R,7R,7aR-isomer). It is a sesquiterpene and a bridged compound."}]