Question: who wrote the theme song for the winter olympics
[{'answer': 'Leo Arnaud', 'provenance': [{'wikipedia_id': '11143466', 'title': 'Leo Arnaud', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 10, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11143466', 'title': 'Leo Arnaud', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14851249643331224236}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11143466', 'title': 'Leo Arnaud', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 239, 'bleu_score': 0.8375707157974781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14851249643331224236}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11143466', 'title': 'Leo Arnaud', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 577, 'bleu_score': 0.9796927878356411, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14851249643331224236}, 'section': "Section::::Bugler's Dream.\n"}]}, {'provenance': [{'wikipedia_id': '82762', 'title': '1984 Summer Olympics', 'section': 'Section::::Music.\n', 'start_paragraph_id': 13, 'end_paragraph_id': 13, 'meta': {'evidence_span': ["his piece won a Grammy for Williams and became one of the most well-known musical themes of the Olympic Games, along with Leo Arnaud's", 'This piece won a Grammy for Williams and became one of the most well-known musical themes of the Olympic Games, along with Leo Arnaud\'s "Bugler\'s Dream"; the latter is sometimes attached to the beginning of Olympic Fanfare and Theme.']}}]}, {'provenance': [{'wikipedia_id': '11143466', 'title': 'Leo Arnaud', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Leo Arnaud or Léo Arnaud (; July 24, 1904 April 26, 1991) was a French-American composer of film scores, best known for "Bugler\'s Dream", which is used as the theme by television networks presenting the Olympic Games in the United States.', 'Leo Arnaud or Léo Arnaud (; July 24, 1904 April 26, 1991) was a French-American composer of film scores, best known for "Bugler\'s Dream", which is used as the theme by television networks presenting the Olympic Games in the United States.']}}]}, {'provenance': [{'wikipedia_id': '17265357', 'title': 'NBC Olympic broadcasts', 'section': 'Section::::Music.\n', 'start_paragraph_id': 47, 'end_paragraph_id': 47, 'meta': {'evidence_span': [', a composition by Leo Arnaud', 'Bugler\'s Dream", a composition by Leo Arnaud that was historically used by ABC as the main theme of its Olympics coverage since 1968.', 'Since 1992, the main theme of NBC\'s Olympics coverage has been "Bugler\'s Dream", a composition by Leo Arnaud that was historically used by ABC as the main theme of its Olympics coverage since 1968.']}}]}]