Question: when did long track speed skating become an olympic sport
[{'answer': '1914', 'provenance': [{'wikipedia_id': '989619', 'title': 'Long track speed skating', 'start_paragraph_id': 12, 'start_character': 7, 'end_paragraph_id': 12, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::History.:Olympic Games.\n'}]}, {'provenance': [{'wikipedia_id': '989619', 'title': 'Long track speed skating', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 1000, 'bleu_score': 0.9263347546760581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11342243825480570749}, 'section': 'Section::::History.:Olympic Games.\n'}]}]