Question: what episode do rin and haru go to australia
[{'answer': '24', 'provenance': [{'wikipedia_id': '39852913', 'title': 'List of Free! episodes', 'start_paragraph_id': 2, 'start_character': 559, 'end_paragraph_id': 2, 'end_character': 561, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]