Question: how many feet is an olympic size swimming pool
[{'answer': '164.0 ft'}, {'provenance': [{'wikipedia_id': '226434', 'title': 'Olympic-size swimming pool', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 586, 'bleu_score': 0.7822291914244901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5356881482848313573}, 'section': 'Section::::Abstract.'}]}]