[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][C][C@@][Ring1][Ring2][Branch1][P][C@H1][C][C][Branch1][Branch2][C][C@H1][Ring1][Branch1][C][Ring1][O][Branch1][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a tricyclic sesquiterpene that is 2,4,4a,5,6,7,7a,7b-octahydro-1H-cyclobuta[e]indene bearing four methyl substituents at positions 3, 6, 6 and 7b. It has a role as a fungal metabolite. It is a sesquiterpene and a carbotricyclic compound."}]