Question: when did the tallest man in the world die
[{'answer': 'July 15 , 1940', 'provenance': [{'wikipedia_id': '359117', 'title': 'Robert Wadlow', 'start_paragraph_id': 1, 'start_character': 42, 'end_paragraph_id': 1, 'end_character': 56, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '359117', 'title': 'Robert Wadlow', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 239, 'bleu_score': 0.7988335681808141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12171359983373354528}, 'section': 'Section::::Abstract.'}]}]