Question: who built the famous agra fort at agra
[{'answer': 'Akbar', 'provenance': [{'wikipedia_id': '1115045', 'title': 'Agra Fort', 'start_paragraph_id': 2, 'start_character': 614, 'end_paragraph_id': 2, 'end_character': 619, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1115045', 'title': 'Agra Fort', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 506, 'bleu_score': 0.9768747032089851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7351520271759425835}, 'section': 'Section::::History.\n'}]}]