Question: what is the duration of a rugby match
[{'answer': '80 minutes', 'provenance': [{'wikipedia_id': '25405', 'title': 'Rugby union', 'start_paragraph_id': 51, 'start_character': 296, 'end_paragraph_id': 51, 'end_character': 306, 'bleu_score': 1.0, 'section': 'Section::::Laws.:Match structure.\n'}]}, {'provenance': [{'wikipedia_id': '25405', 'title': 'Rugby union', 'start_paragraph_id': 51, 'start_character': 0, 'end_paragraph_id': 51, 'end_character': 680, 'bleu_score': 0.956047202777158, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18386760417377762659}, 'section': 'Section::::Laws.:Match structure.\n'}]}]