Question: who sells the most oil in the world
[{'answer': 'Saudi Arabia', 'provenance': [{'wikipedia_id': '17756493', 'title': 'List of countries by oil production', 'start_paragraph_id': 3, 'start_character': 77, 'end_paragraph_id': 3, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17756493', 'title': 'List of countries by oil production', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 691, 'bleu_score': 0.9832621206481431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14900249484037010672}, 'section': 'Section::::Abstract.'}]}]