Question: when was the federal law providing benefits for the unemployed passed
[{'answer': '1920', 'provenance': [{'wikipedia_id': '378430', 'title': 'Unemployment benefits', 'start_paragraph_id': 9, 'start_character': 31, 'end_paragraph_id': 9, 'end_character': 35, 'bleu_score': 1.0, 'section': 'Section::::History.:Expansion and spread.\n'}]}, {'provenance': [{'wikipedia_id': '378430', 'title': 'Unemployment benefits', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 304, 'bleu_score': 0.955027111100031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11087087124404434027}, 'section': 'Section::::History.:Expansion and spread.\n'}]}]