Question: who sang who's going to fill their shoes
[{'answer': 'George Jones', 'provenance': [{'wikipedia_id': '30597562', 'title': "Who's Gonna Fill Their Shoes (song)", 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '30597562', 'title': "Who's Gonna Fill Their Shoes (song)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 344, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12787314803885150248}, 'section': 'Section::::Abstract.'}]}]