Question: who was responsible for the oil spill in the gulf of mexico
[{'answer': 'Deepwater Horizon', 'provenance': [{'wikipedia_id': '27046954', 'title': 'Deepwater Horizon oil spill', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '27046954', 'title': 'Deepwater Horizon oil spill', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 750, 'bleu_score': 0.817665646349356, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9191473550743808911}, 'section': 'Section::::Abstract.'}]}]