Question: who played rachel in the first blade runner movie
[{'answer': 'Sean Young', 'provenance': [{'wikipedia_id': '3746', 'title': 'Blade Runner', 'start_paragraph_id': 1, 'start_character': 170, 'end_paragraph_id': 1, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]