Question: who wrote the song the fighter keith urban
[{'answer': 'Keith Urban', 'provenance': [{'wikipedia_id': '51032008', 'title': 'The Fighter (Keith Urban song)', 'start_paragraph_id': 0, 'start_character': 13, 'end_paragraph_id': 0, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'busbee', 'provenance': [{'wikipedia_id': '51032008', 'title': 'The Fighter (Keith Urban song)', 'start_paragraph_id': 1, 'start_character': 291, 'end_paragraph_id': 1, 'end_character': 297, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]