Question: who won the all england badminton championships for seven years
[{'answer': 'Rudy Hartono', 'provenance': [{'wikipedia_id': '9673660', 'title': "List of All England Men's Singles champions", 'start_paragraph_id': 3, 'start_character': 20, 'end_paragraph_id': 3, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]