Question: who wrote the song before the next teardrop falls
[{'answer': 'Vivian Keith', 'provenance': [{'wikipedia_id': '13481640', 'title': 'Before the Next Teardrop Falls (song)', 'start_paragraph_id': 1, 'start_character': 80, 'end_paragraph_id': 1, 'end_character': 92, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ben Peters', 'provenance': [{'wikipedia_id': '13481640', 'title': 'Before the Next Teardrop Falls (song)', 'start_paragraph_id': 1, 'start_character': 97, 'end_paragraph_id': 1, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]