Question: when did the nfr move to las vegas
[{'answer': '1985', 'provenance': [{'wikipedia_id': '2509067', 'title': 'National Finals Rodeo', 'start_paragraph_id': 26, 'start_character': 172, 'end_paragraph_id': 26, 'end_character': 176, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '2509067', 'title': 'National Finals Rodeo', 'start_paragraph_id': 26, 'start_character': 0, 'end_paragraph_id': 26, 'end_character': 363, 'bleu_score': 0.9284380597578951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1639467386639570193}, 'section': 'Section::::History.\n'}]}]