Question: who is known as iron man of haryana
[{'answer': 'Bansi Lal', 'provenance': [{'wikipedia_id': '4547150', 'title': 'Bansi Lal', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4547150', 'title': 'Bansi Lal', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 507, 'bleu_score': 0.5907290641271931, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8425282162141594238}, 'section': 'Section::::Chief Minister of Haryana.\n'}]}]