Question: which is the richest country in middle east
[{'answer': 'Qatar', 'provenance': [{'wikipedia_id': '5121837', 'title': 'Economy of the Middle East', 'start_paragraph_id': 2, 'start_character': 150, 'end_paragraph_id': 2, 'end_character': 155, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]