Question: where is lake athabasca located on a map
[{'answer': 'northwest corner of Saskatchewan', 'provenance': [{'wikipedia_id': '406227', 'title': 'Lake Athabasca', 'start_paragraph_id': 1, 'start_character': 126, 'end_paragraph_id': 1, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'northeast corner of Alberta', 'provenance': [{'wikipedia_id': '406227', 'title': 'Lake Athabasca', 'start_paragraph_id': 1, 'start_character': 167, 'end_paragraph_id': 1, 'end_character': 194, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '406227', 'title': 'Lake Athabasca', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 268, 'bleu_score': 0.858798295665063, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17071508762767838039}, 'section': 'Section::::Abstract.'}]}]