Question: 1. who was the leader of the national union of mineworkers
[{'answer': 'Nicky Wilson', 'provenance': [{'wikipedia_id': '415162', 'title': 'National Union of Mineworkers (Great Britain)', 'start_paragraph_id': 46, 'start_character': 18, 'end_paragraph_id': 46, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Officers.\n'}]}]