Question: what kind of stores are walmart and target
[{'answer': 'big - box stores', 'provenance': [{'wikipedia_id': '1891589', 'title': 'Big-box store', 'start_paragraph_id': 41, 'start_character': 27, 'end_paragraph_id': 41, 'end_character': 45, 'bleu_score': 1.0, 'section': 'Section::::Big-box stores in various countries.:United States.\n'}]}, {'provenance': [{'wikipedia_id': '1891589', 'title': 'Big-box store', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 577, 'bleu_score': 0.931506586060527, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2068064063448115533}, 'section': 'Section::::Abstract.'}]}]