Question: who is an example of a nationalist romantic composer
[{'answer': 'Frédéric Chopin', 'provenance': [{'wikipedia_id': '3360763', 'title': 'Musical nationalism', 'start_paragraph_id': 4, 'start_character': 509, 'end_paragraph_id': 4, 'end_character': 524, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '3360763', 'title': 'Musical nationalism', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 600, 'bleu_score': 0.8942464073239821, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6312847355786231956}, 'section': 'Section::::Poland.:Frédéric Chopin (1810–1849).\n'}]}]