Question: who became the mamodo king in zatch bell
[{'answer': 'Zatch', 'provenance': [{'wikipedia_id': '1549389', 'title': 'Zatch Bell!', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 5, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1549389', 'title': 'Zatch Bell!', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 1380, 'bleu_score': 0.912162675534902, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10004433891958399582}, 'section': 'Section::::Synopsis.:Plot.\n'}]}]