Question: when did the luge start in the olympics
[{'answer': '1964', 'provenance': [{'wikipedia_id': '37779', 'title': 'Luge', 'start_paragraph_id': 7, 'start_character': 732, 'end_paragraph_id': 7, 'end_character': 736, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '37779', 'title': 'Luge', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 736, 'bleu_score': 0.9822204502117851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2020769579212697969}, 'section': 'Section::::History.\n'}]}]