Question: nafta was created to promote fair trading practices between what countries
[{'answer': 'Canada', 'provenance': [{'wikipedia_id': '22050', 'title': 'North American Free Trade Agreement', 'start_paragraph_id': 1, 'start_character': 92, 'end_paragraph_id': 1, 'end_character': 98, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mexico', 'provenance': [{'wikipedia_id': '22050', 'title': 'North American Free Trade Agreement', 'start_paragraph_id': 1, 'start_character': 100, 'end_paragraph_id': 1, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the United States', 'provenance': [{'wikipedia_id': '22050', 'title': 'North American Free Trade Agreement', 'start_paragraph_id': 1, 'start_character': 112, 'end_paragraph_id': 1, 'end_character': 129, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '22050', 'title': 'North American Free Trade Agreement', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 334, 'bleu_score': 0.6062264189630721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6106898280531182638}, 'section': 'Section::::Abstract.'}]}]