Question: how old was evel knievel when he jumped caesars palace
[{'answer': '29', 'provenance': [{'wikipedia_id': '66427', 'title': 'Evel Knievel', 'start_paragraph_id': 24, 'start_character': 23, 'end_paragraph_id': 24, 'end_character': 25, 'bleu_score': 1.0, 'section': 'Section::::Stunt performance.:Caesars Palace.\n'}]}, {'provenance': [{'wikipedia_id': '66427', 'title': 'Evel Knievel', 'start_paragraph_id': 24, 'start_character': 20, 'end_paragraph_id': 24, 'end_character': 256, 'bleu_score': 0.9340246756077241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16960133728053251314}, 'section': 'Section::::Stunt performance.:Caesars Palace.\n'}]}]