Question: what is the most popular sport played in australia
[{'answer': 'Australian football', 'provenance': [{'wikipedia_id': '2804880', 'title': 'Sport in Australia', 'start_paragraph_id': 11, 'start_character': 1268, 'end_paragraph_id': 11, 'end_character': 1287, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '2804880', 'title': 'Sport in Australia', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 691, 'bleu_score': 0.529344608148349, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 600266384294498953}, 'section': 'Section::::Abstract.'}]}]