Question: when did america's cup go to catamarans
[{'answer': '2013', 'provenance': [{'wikipedia_id': '170491', 'title': "America's Cup", 'start_paragraph_id': 8, 'start_character': 213, 'end_paragraph_id': 8, 'end_character': 217, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '170491', 'title': "America's Cup", 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 408, 'bleu_score': 0.8899474096727641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12771145350495891179}, 'section': 'Section::::Abstract.'}]}]