Question: who sang the original song if tomorrow never comes
[{'answer': 'Garth Brooks', 'provenance': [{'wikipedia_id': '7530567', 'title': 'If Tomorrow Never Comes', 'start_paragraph_id': 1, 'start_character': 78, 'end_paragraph_id': 1, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7530567', 'title': 'If Tomorrow Never Comes', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 724, 'bleu_score': 0.984188478234951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3498684002122131130}, 'section': 'Section::::Abstract.'}]}]