Question: where is the peace tower located in canada
[{'answer': 'Ottawa , Ontario', 'provenance': [{'wikipedia_id': '1371609', 'title': 'Peace Tower', 'start_paragraph_id': 1, 'start_character': 189, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1371609', 'title': 'Peace Tower', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 537, 'bleu_score': 0.7823656566942221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15152374838712855241}, 'section': 'Section::::Abstract.'}]}]