[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a 3,4-epoxy-3,4-dihydrophenanthrene. It is an enantiomer of a (3R,4S)-3,4-epoxy-3,4-dihydrophenanthrene."}, {"from": "gpt", "value": "[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]"}]