Question: Which of Banjo Paterson's most notable poems has been described as Australia's "unofficial national anthem"?
Sentence (from "Banjo Paterson"): Andrew Barton "Banjo" Paterson, {'1': ", '2': ", '3': ", '4': "} (17 February 18645 February 1941) was an Australian bush poet, journalist and author.
Relevant evidence: No