Question: when did bobby joe win the grand national
[{'answer': '1999', 'provenance': [{'wikipedia_id': '16646829', 'title': 'Bobbyjo', 'start_paragraph_id': 2, 'start_character': 104, 'end_paragraph_id': 2, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16646829', 'title': 'Bobbyjo', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 205, 'bleu_score': 0.9129476313504, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2266236919667933990}, 'section': 'Section::::Abstract.'}]}]