Question: who wrote the play death of a salesman
[{'answer': 'American playwright Arthur Miller', 'provenance': [{'wikipedia_id': '156620', 'title': 'Death of a Salesman', 'start_paragraph_id': 1, 'start_character': 46, 'end_paragraph_id': 1, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '156620', 'title': 'Death of a Salesman', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 395, 'bleu_score': 0.897547341647235, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8528284169430027910}, 'section': 'Section::::Abstract.'}]}]