Question: when was the truth and reconciliation commission established in canada
[{'answer': 'June 2 , 2008', 'provenance': [{'wikipedia_id': '15212557', 'title': 'Truth and Reconciliation Commission of Canada', 'start_paragraph_id': 1, 'start_character': 262, 'end_paragraph_id': 1, 'end_character': 279, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]