Question: the passage of the kansas-nebraska act led directly to the establishment of which political party
[{'answer': 'Republican', 'provenance': [{'wikipedia_id': '17042', 'title': 'Kansas–Nebraska Act', 'start_paragraph_id': 3, 'start_character': 788, 'end_paragraph_id': 3, 'end_character': 798, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]