Question: what la created the national labor relations board
[{'answer': 'the National Labor Relations Act', 'provenance': [{'wikipedia_id': '223373', 'title': 'National Labor Relations Board', 'start_paragraph_id': 1, 'start_character': 236, 'end_paragraph_id': 1, 'end_character': 268, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '223373', 'title': 'National Labor Relations Board', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 747, 'bleu_score': 0.9530446225172671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3241639437251013314}, 'section': "Section::::History.:1933–1935: First collective bargaining organization 'National Labor Board'.\n"}]}]