Question: who wrote the hymn be still my soul
[{'answer': 'Jean Sibelius', 'provenance': [{'wikipedia_id': '199115', 'title': 'Finlandia hymn', 'start_paragraph_id': 1, 'start_character': 155, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '199115', 'title': 'Finlandia hymn', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 233, 'bleu_score': 0.7845332138125901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9149643687771643995}, 'section': 'Section::::Abstract.'}]}]