Question: when did canada sign the declaration of human rights
[{'answer': '10 December 1948', 'provenance': [{'wikipedia_id': '31899', 'title': 'Universal Declaration of Human Rights', 'start_paragraph_id': 1, 'start_character': 152, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '31899', 'title': 'Universal Declaration of Human Rights', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 347, 'bleu_score': 0.9262685672663881, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8044212995590253845}, 'section': 'Section::::Abstract.'}]}]