Question: how much is a stone in american weight
[{'answer': '14 pounds', 'provenance': [{'wikipedia_id': '679929', 'title': 'Stone (unit)', 'start_paragraph_id': 7, 'start_character': 501, 'end_paragraph_id': 7, 'end_character': 510, 'bleu_score': 1.0, 'section': 'Section::::Britain and Ireland.:England.\n'}]}, {'provenance': [{'wikipedia_id': '679929', 'title': 'Stone (unit)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 125, 'bleu_score': 0.7947545184555561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10406019541942276055}, 'section': 'Section::::Abstract.'}]}]