Question: when did canada adopt the bill of rights
[{'answer': 'August 10 , 1960', 'provenance': [{'wikipedia_id': '224448', 'title': 'Canadian Bill of Rights', 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]