[{"from": "human", "value": "Describe this molecule. [C][C][C][Branch1][N][C][=C][C][=C][C][=C][Ring1][=Branch1][O][Ring1][#Branch2][O][C][=C][C][=C][C][=C][Ring1][S][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is the simplest member of the class of pterocarpans that is 6a,11a-dihydro-6H-[1]benzofuro[3,2-c]chromene."}]