Question: what kind of oil is in north dakota
[{'answer': 'Bakken', 'provenance': [{'wikipedia_id': '14210322', 'title': 'Bakken Formation', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 6, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '14210322', 'title': 'Bakken Formation', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 513, 'bleu_score': 0.8460154875634811, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9817722185248548123}, 'section': 'Section::::Abstract.'}]}]