Question: what was the major platform of the know-nothing party
[{'answer': 'American nationalism'}, {'answer': 'Anti-Catholicism', 'provenance': [{'wikipedia_id': '13698725', 'title': 'Know Nothing', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'answer': 'Populism'}, {'answer': 'Nativism', 'provenance': [{'wikipedia_id': '13698725', 'title': 'Know Nothing', 'start_paragraph_id': 19, 'start_character': 49, 'end_paragraph_id': 19, 'end_character': 57, 'bleu_score': 1.0, 'section': 'Section::::History.:Rise.\n'}]}, {'answer': 'Republicanism', 'provenance': [{'wikipedia_id': '13698725', 'title': 'Know Nothing', 'start_paragraph_id': 10, 'start_character': 388, 'end_paragraph_id': 10, 'end_character': 401, 'bleu_score': 1.0, 'section': 'Section::::History.:Underlying issues.\n'}]}]