Question: disease caused due to lack of vitamin b
[{'answer': 'Thiamine deficiency', 'provenance': [{'wikipedia_id': '5759935', 'title': 'Thiamine deficiency', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5759935', 'title': 'Thiamine deficiency', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 680, 'bleu_score': 0.982060959997838, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3682830233996860828}, 'section': 'Section::::Abstract.'}]}]