Question: who won one day world cup in 2007
[{'answer': 'Australia', 'provenance': [{'wikipedia_id': '266217', 'title': '2007 Cricket World Cup', 'start_paragraph_id': 2, 'start_character': 159, 'end_paragraph_id': 2, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]