Question: russian composer created the music for the ballet the firebird
[{'answer': 'Igor Stravinsky', 'provenance': [{'wikipedia_id': '1060482', 'title': 'The Firebird', 'start_paragraph_id': 1, 'start_character': 82, 'end_paragraph_id': 1, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1060482', 'title': 'The Firebird', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 507, 'bleu_score': 0.8639358011678461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1992639886424716364}, 'section': 'Section::::Abstract.'}]}]