Question: who is the coach of the carolina panthers
[{'answer': 'Ronald Eugene Rivera'}, {'provenance': [{'wikipedia_id': '1193476', 'title': 'Ron Rivera', 'start_paragraph_id': 1, 'start_character': 18, 'end_paragraph_id': 1, 'end_character': 211, 'bleu_score': 0.791793426149333, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17966782206037817962}, 'section': 'Section::::Abstract.'}]}]