Question: where does the phrase no worries come from
[{'answer': 'Australian culture', 'provenance': [{'wikipedia_id': '20706805', 'title': 'No worries', 'start_paragraph_id': 1, 'start_character': 357, 'end_paragraph_id': 1, 'end_character': 375, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '20706805', 'title': 'No worries', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 706, 'bleu_score': 0.9802931511945101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1267228582854297744}, 'section': 'Section::::Cultural origins.\n'}]}]