Question: the fall of the first republic of nigeria took place on
[{'answer': '15 January 1966', 'provenance': [{'wikipedia_id': '9795560', 'title': 'First Nigerian Republic', 'start_paragraph_id': 32, 'start_character': 99, 'end_paragraph_id': 32, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::The coup.\n'}]}, {'provenance': [{'wikipedia_id': '9795560', 'title': 'First Nigerian Republic', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 923, 'bleu_score': 0.9709797067861031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 718626488460185211}, 'section': 'Section::::The coup.\n'}]}]