Question: what capital city is 400 miles east of algiers algeria
[{'answer': 'El Oued', 'provenance': [{'wikipedia_id': '1738970', 'title': 'El Oued', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1738970', 'title': 'El Oued', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 219, 'bleu_score': 0.8339679065405731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4583547332201477075}, 'section': 'Section::::Abstract.'}]}]