Question: there were no genuine labor unions in the united states until
[{'answer': '1935', 'provenance': [{'wikipedia_id': '1075686', 'title': 'United States labor law', 'start_paragraph_id': 2, 'start_character': 315, 'end_paragraph_id': 2, 'end_character': 319, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1075686', 'title': 'United States labor law', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 3786, 'bleu_score': 0.988444576439454, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2285169188825777195}, 'section': 'Section::::History.\n'}]}]