Question: who wrote all my ex's live in texas
[{'answer': 'Sanger D. Shafer', 'provenance': [{'wikipedia_id': '16334568', 'title': "All My Ex's Live in Texas", 'start_paragraph_id': 1, 'start_character': 49, 'end_paragraph_id': 1, 'end_character': 65, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Linda J. Shafer'}, {'provenance': [{'wikipedia_id': '16334568', 'title': "All My Ex's Live in Texas", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 235, 'bleu_score': 0.8977528478480281, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7380256159765977719}, 'section': 'Section::::Abstract.'}]}]