Question: how many us pounds in a uk stone
[{'answer': '14 pounds', 'provenance': [{'wikipedia_id': '23316', 'title': 'Pound (mass)', 'start_paragraph_id': 9, 'start_character': 412, 'end_paragraph_id': 9, 'end_character': 421, 'bleu_score': 1.0, 'section': 'Section::::Current use.\n'}]}, {'provenance': [{'wikipedia_id': '23316', 'title': 'Pound (mass)', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 552, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 383263888308162997}, 'section': 'Section::::Current use.\n'}]}]