Question: golden rice was developed to help with blindness caused by a deficiency of which vitamin
[{'answer': 'vitamin A', 'provenance': [{'wikipedia_id': '246458', 'title': 'Golden rice', 'start_paragraph_id': 1, 'start_character': 134, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '246458', 'title': 'Golden rice', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 526, 'bleu_score': 0.9375874466695201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1253173260882113066}, 'section': 'Section::::Vitamin A deficiency.\n'}]}]