Question: who is on the australian 50 dollar bill
[{'answer': 'David Unaipon', 'provenance': [{'wikipedia_id': '5268920', 'title': 'Australian fifty-dollar note', 'start_paragraph_id': 1, 'start_character': 172, 'end_paragraph_id': 1, 'end_character': 185, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Edith Cowan', 'provenance': [{'wikipedia_id': '5268920', 'title': 'Australian fifty-dollar note', 'start_paragraph_id': 1, 'start_character': 190, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5268920', 'title': 'Australian fifty-dollar note', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 0.9402297675816911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8755838608398612181}, 'section': 'Section::::Abstract.'}]}]