Question: when did australia 2 win the america's cup
[{'answer': '1983', 'provenance': [{'wikipedia_id': '11391387', 'title': "1983 America's Cup", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 4, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11391387', 'title': "1983 America's Cup", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16396576202927002605}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11391387', 'title': "1983 America's Cup", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 505, 'bleu_score': 0.976043556018343, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16396576202927002605}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '243669', 'title': 'Australia II', 'section': "Section::::Competitions.:America's Cup.\n", 'start_paragraph_id': 12, 'end_paragraph_id': 12, 'meta': {'evidence_span': ['The victory on 26 September 1983 was a landmark event for the nation of Australia, not to mention the Royal Perth Yacht Club', '"Australia II" came from behind to prevail 4 races to 3. The victory on 26 September 1983 was a landmark event for the nation of Australia, not to mention the Royal Perth Yacht Club.', '1983']}}]}]