Question: who were the australian and american forces allied with during the vietnam war
[{'answer': 'South Vietnam', 'provenance': [{'wikipedia_id': '5777566', 'title': 'Military history of Australia during the Vietnam War', 'start_paragraph_id': 1, 'start_character': 279, 'end_paragraph_id': 1, 'end_character': 292, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5777566', 'title': 'Military history of Australia during the Vietnam War', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 1031, 'bleu_score': 0.968775123382638, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7440496238130492607}, 'section': 'Section::::Background.\n'}]}]