[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=C][C][=C][Ring1][#Branch1][C@H1][C@H1][Branch1][Ring2][O][Ring1][Ring1][C][=C][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule is a 3,4-epoxy-3,4-dihydrophenanthrene. It is an enantiomer of a (3S,4R)-3,4-epoxy-3,4-dihydrophenanthrene."}]