Question: who is the original singer of galway girl
[{'answer': 'Steve Earle', 'provenance': [{'wikipedia_id': '17421556', 'title': 'Galway Girl (Steve Earle song)', 'start_paragraph_id': 0, 'start_character': 13, 'end_paragraph_id': 0, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Irish musician Sharon Shannon', 'provenance': [{'wikipedia_id': '17421556', 'title': 'Galway Girl (Steve Earle song)', 'start_paragraph_id': 1, 'start_character': 65, 'end_paragraph_id': 1, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17421556', 'title': 'Galway Girl (Steve Earle song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 398, 'bleu_score': 0.9297257490286691, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4200906601736874105}, 'section': 'Section::::Abstract.'}]}]