Question: where is the grand canyon national park located
[{'answer': 'northwestern Arizona', 'provenance': [{'wikipedia_id': '46986', 'title': 'Grand Canyon National Park', 'start_paragraph_id': 1, 'start_character': 39, 'end_paragraph_id': 1, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46986', 'title': 'Grand Canyon National Park', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 593, 'bleu_score': 0.9021345514857331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6640750121350568590}, 'section': 'Section::::Abstract.'}]}]