Question: who has the most title defenses in wwe
[{'answer': 'John Cena', 'provenance': [{'wikipedia_id': '690083', 'title': 'List of WWE Champions', 'start_paragraph_id': 2, 'start_character': 66, 'end_paragraph_id': 2, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '690083', 'title': 'List of WWE Champions', 'start_paragraph_id': 4, 'start_character': 28, 'end_paragraph_id': 4, 'end_character': 353, 'bleu_score': 0.7385457931667201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1893354930046022145}, 'section': 'Section::::Abstract.'}]}]