Question: who has won the six nations the most
[{'answer': 'England', 'provenance': [{'wikipedia_id': '26547', 'title': 'Six Nations Championship', 'start_paragraph_id': 1, 'start_character': 161, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26547', 'title': 'Six Nations Championship', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 341, 'bleu_score': 0.525643188095476, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7466374068890510340}, 'section': 'Section::::Abstract.'}]}]