Question: when was the liberal party of canada formed
[{'answer': '1861', 'provenance': [{'wikipedia_id': '19769687', 'title': 'History of the Liberal Party of Canada', 'start_paragraph_id': 11, 'start_character': 589, 'end_paragraph_id': 11, 'end_character': 593, 'bleu_score': 1.0, 'section': 'Section::::19th century.:Origins.\n'}]}, {'provenance': [{'wikipedia_id': '19769687', 'title': 'History of the Liberal Party of Canada', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 593, 'bleu_score': 0.9788329837059241, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6383424634047708789}, 'section': 'Section::::19th century.:Origins.\n'}]}]