Question: The Australian women's national soccer team represents Australia in international women's soccer at the senior level, the team's official nickname is the Matildas, their  best-known bush ballad, that has been described as the country's "unofficial national anthem", is titled?
{'answer': 'Waltzing Matilda', 'supporting_facts': [["Australia women's national soccer team", 2], ['Waltzing Matilda', 0]]}