Question: places where crude oil is found in nigeria
[{'answer': 'the Niger Delta', 'provenance': [{'wikipedia_id': '1844605', 'title': 'Niger Delta', 'start_paragraph_id': 17, 'start_character': 39, 'end_paragraph_id': 17, 'end_character': 54, 'bleu_score': 1.0, 'section': 'Section::::History.:Non-violent resistance.\n'}]}, {'provenance': [{'wikipedia_id': '1844605', 'title': 'Niger Delta', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 1700, 'bleu_score': 0.939406738769015, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2499175902396142412}, 'section': 'Section::::Nigerian oil.\n'}]}]