Question: who sang edelweiss in the sound of music
[{'answer': 'Theodore Bikel', 'provenance': [{'wikipedia_id': '1326691', 'title': 'Edelweiss (song)', 'start_paragraph_id': 1, 'start_character': 352, 'end_paragraph_id': 1, 'end_character': 366, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1326691', 'title': 'Edelweiss (song)', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 243, 'bleu_score': 0.9493253852526031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1638386400010308728}, 'section': 'Section::::Other versions.\n'}]}]