Question: who was the leading composer of impressionist music
[{'answer': 'Claude Debussy and Maurice Ravel', 'provenance': [{'wikipedia_id': '14566', 'title': 'Impressionism in music', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '14566', 'title': 'Impressionism in music', 'start_paragraph_id': 4, 'start_character': 128, 'end_paragraph_id': 4, 'end_character': 1208, 'bleu_score': 0.840618888341627, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8415163018490896545}, 'section': 'Section::::History.\n'}]}]