Question: who wrote the champion sung by carrie underwood
[{'answer': 'Carrie Underwood', 'provenance': [{'wikipedia_id': '55212905', 'title': 'The Champion (song)', 'start_paragraph_id': 1, 'start_character': 67, 'end_paragraph_id': 1, 'end_character': 83, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Christopher Bridges'}, {'answer': 'Chris DeStefano'}, {'answer': 'Brett James'}]