Question: the oldest person to win an olympic gold medal
[{'answer': 'Oscar Gomer Swahn', 'provenance': [{'wikipedia_id': '960941', 'title': 'Oscar Swahn', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '960941', 'title': 'Oscar Swahn', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 296, 'bleu_score': 0.7762416388025111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8349589519270170478}, 'section': 'Section::::Abstract.'}]}]