Question: where did they film ninja warrior in australia
[{'answer': 'Cockatoo Island', 'provenance': [{'wikipedia_id': '51157068', 'title': 'Australian Ninja Warrior', 'start_paragraph_id': 3, 'start_character': 129, 'end_paragraph_id': 3, 'end_character': 144, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '51157068', 'title': 'Australian Ninja Warrior', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 425, 'bleu_score': 0.5384074886687971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3496840552919104857}, 'section': 'Section::::History.\n'}]}]