Which Canadian city is home to the Niagara Falls?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q1860', 'id': 0, 'label': 'English'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q16', 'id': 1, 'label': 'Canada'}, {'type': 'INTERNAL', 'name_': 'Q4167836', 'id': 2, 'label': 'Wikimedia category'}, {'type': 'INTERNAL', 'name_': 'Q252052', 'id': 3, 'label': 'Total Drama World Tour'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q128133', 'id': 4, 'label': 'Niagara Falls'}, {'type': 'INTERNAL', 'name_': 'Q8288483', 'id': 5, 'label': 'Category:Bank of Canada'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q806703', 'id': 6, 'label': 'Bank of Canada'}, {'type': 'INTERNAL', 'name_': 'Q15127104', 'id': 7, 'label': 'Tiff Macklem'}, {'type': 'INTERNAL', 'name_': 'Q16342514', 'id': 8, 'label': 'Category:Births in Niagara Falls, New York'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 1, 'label': 'country'}, {'name_': 'P364', 'source': 3, 'target': 0, 'label': 'original language of performance work'}, {'name_': 'P495', 'source': 3, 'target': 1, 'label': 'country of origin'}, {'name_': 'P840', 'source': 3, 'target': 4, 'label': 'narrative location'}, {'name_': 'P31', 'source': 5, 'target': 2, 'label': 'instance of'}, {'name_': 'P301', 'source': 5, 'target': 6, 'label': "category's main topic"}, {'name_': 'P1412', 'source': 7, 'target': 0, 'label': 'languages spoken, written or signed'}, {'name_': 'P27', 'source': 7, 'target': 1, 'label': 'country of citizenship'}, {'name_': 'P108', 'source': 7, 'target': 6, 'label': 'employer'}, {'name_': 'P31', 'source': 8, 'target': 2, 'label': 'instance of'}, {'name_': 'P971', 'source': 8, 'target': 4, 'label': 'category combines topics'}]}