Question: when did little rock central high school close
[{'answer': 'Open', 'provenance': [{'wikipedia_id': '298129', 'title': 'Little Rock Central High School', 'start_paragraph_id': 8, 'start_character': 321, 'end_paragraph_id': 8, 'end_character': 325, 'bleu_score': 1.0, 'section': 'Section::::History.:Early campus history.\n'}]}]