Question: who has won the most world cup soccer championships
[{'answer': 'Brazil', 'provenance': [{'wikipedia_id': '11370', 'title': 'FIFA World Cup', 'start_paragraph_id': 3, 'start_character': 68, 'end_paragraph_id': 3, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]