Question: who escorted the little rock nine to school
[{'answer': '101st Airborne Division', 'provenance': [{'wikipedia_id': '20329639', 'title': 'Little Rock Nine', 'start_paragraph_id': 14, 'start_character': 194, 'end_paragraph_id': 14, 'end_character': 217, 'bleu_score': 1.0, 'section': 'Section::::Armed escort.\n'}]}, {'answer': 'Arkansas National Guard', 'provenance': [{'wikipedia_id': '20329639', 'title': 'Little Rock Nine', 'start_paragraph_id': 4, 'start_character': 49, 'end_paragraph_id': 4, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20329639', 'title': 'Little Rock Nine', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 633, 'bleu_score': 0.920352143675588, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17553716601574180813}, 'section': 'Section::::A tense year.\n'}]}]