Question: cairo the present capital of egypt is located closest to which ancient city
[{'answer': 'Memphis', 'provenance': [{'wikipedia_id': '6293', 'title': 'Cairo', 'start_paragraph_id': 1, 'start_character': 262, 'end_paragraph_id': 1, 'end_character': 269, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6293', 'title': 'Cairo', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 785, 'bleu_score': 0.7821903594713401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8320654661367451783}, 'section': 'Section::::Abstract.'}]}]