Question: where is walnut grove on little house on the prairie
[{'answer': 'Minnesota', 'provenance': [{'wikipedia_id': '195705', 'title': 'Little House on the Prairie', 'start_paragraph_id': 1, 'start_character': 183, 'end_paragraph_id': 1, 'end_character': 192, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '195705', 'title': 'Little House on the Prairie', 'start_paragraph_id': 46, 'start_character': 0, 'end_paragraph_id': 46, 'end_character': 264, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15112175161756274217}, 'section': 'Section::::Books.:"On the Banks of Plum Creek".\n'}]}]