Question: when did cross country skiing become an olympic sport
[{'answer': '1924', 'provenance': [{'wikipedia_id': '5327128', 'title': 'Cross-country skiing at the Winter Olympics', 'start_paragraph_id': 1, 'start_character': 100, 'end_paragraph_id': 1, 'end_character': 104, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5327128', 'title': 'Cross-country skiing at the Winter Olympics', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 193, 'bleu_score': 0.9075772733559511, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15103880039137685358}, 'section': 'Section::::Abstract.'}]}]