Question: who was the leader of australia during ww2
[{'answer': 'Prime Minister Robert Menzies', 'provenance': [{'wikipedia_id': '22738876', 'title': 'Australian Army during World War II', 'start_paragraph_id': 1, 'start_character': 294, 'end_paragraph_id': 1, 'end_character': 323, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22738876', 'title': 'Australian Army during World War II', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1218, 'bleu_score': 0.9712257331108671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11749271087978203369}, 'section': 'Section::::Abstract.'}]}]