Question: when were fathers allowed in the delivery room
[{'answer': 'since the 1960s', 'provenance': [{'wikipedia_id': '5023197', 'title': "Men's role in childbirth", 'start_paragraph_id': 6, 'start_character': 87, 'end_paragraph_id': 6, 'end_character': 102, 'bleu_score': 1.0, 'section': 'Section::::History.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '5023197', 'title': "Men's role in childbirth", 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 707, 'bleu_score': 0.680231378312045, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11109232708377621061}, 'section': 'Section::::History.:United States.\n'}]}]