What treaty ended the war of 1812?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q867541', 'id': 0, 'label': 'Encyclopædia Britannica 11th edition'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q26013', 'id': 1, 'label': 'War of 1812'}], 'links': [{'name_': 'P1343', 'source': 1, 'target': 0, 'label': 'described by source'}]}