Question: who wrote the source material for rear window
[{'answer': 'Cornell Woolrich', 'provenance': [{'wikipedia_id': '74577', 'title': 'Rear Window', 'start_paragraph_id': 1, 'start_character': 137, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]