Question: when did the first person climb mt everest
[{'answer': '29 May 1953', 'provenance': [{'wikipedia_id': '73572', 'title': 'Edmund Hillary', 'start_paragraph_id': 1, 'start_character': 125, 'end_paragraph_id': 1, 'end_character': 136, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '73572', 'title': 'Edmund Hillary', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 349, 'bleu_score': 0.87540210596635, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16972686283157518487}, 'section': 'Section::::Abstract.'}]}]