Question: who made history by winning 8 gold medals in the beijing olympics in one event
[{'answer': 'Michael Phelps', 'provenance': [{'wikipedia_id': '18789571', 'title': 'List of 2008 Summer Olympics medal winners', 'start_paragraph_id': 4, 'start_character': 17, 'end_paragraph_id': 4, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18789571', 'title': 'List of 2008 Summer Olympics medal winners', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 1108, 'bleu_score': 0.9897694846447971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8532270746082473233}, 'section': 'Section::::Abstract.'}]}]