[{"from": "human", "value": "Generate a molecule based on this description. The molecule is the (S)-enantiomer of styrene oxide. It is an enantiomer of a (R)-styrene oxide."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][Ring2][O][Ring1][Ring1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]