Question: what is the official poverty rate in the us
[{'answer': 'In 2015 , 13.5 %', 'provenance': [{'wikipedia_id': '19283913', 'title': 'Poverty in the United States', 'start_paragraph_id': 2, 'start_character': 118, 'end_paragraph_id': 2, 'end_character': 132, 'bleu_score': 0.668740304976422, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19283913', 'title': 'Poverty in the United States', 'start_paragraph_id': 2, 'start_character': 306, 'end_paragraph_id': 2, 'end_character': 622, 'bleu_score': 0.7715958861756731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1705350700802606494}, 'section': 'Section::::Abstract.'}]}]