Question: when did canada last play in the world cup
[{'answer': '1986', 'provenance': [{'wikipedia_id': '33529697', 'title': 'Canada at the FIFA World Cup', 'start_paragraph_id': 1, 'start_character': 132, 'end_paragraph_id': 1, 'end_character': 136, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33529697', 'title': 'Canada at the FIFA World Cup', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 136, 'bleu_score': 0.929712191543383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6247043639142933035}, 'section': 'Section::::Abstract.'}]}]