Question: when was the first national bravery award given
[{'answer': '4 February 1958', 'provenance': [{'wikipedia_id': '21262833', 'title': 'National Bravery Award', 'start_paragraph_id': 10, 'start_character': 634, 'end_paragraph_id': 10, 'end_character': 649, 'bleu_score': 1.0, 'section': 'Section::::How it All Started.\n'}]}, {'provenance': [{'wikipedia_id': '21262833', 'title': 'National Bravery Award', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 763, 'bleu_score': 0.652423523702347, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14598702274988949873}, 'section': 'Section::::How it All Started.\n'}]}]