Question: what geological feature is a fracture in earth's crust
[{'answer': 'a fault', 'provenance': [{'wikipedia_id': '182787', 'title': 'Fault (geology)', 'start_paragraph_id': 1, 'start_character': 12, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '182787', 'title': 'Fault (geology)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 455, 'bleu_score': 0.9735040436119741, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5819187832631680288}, 'section': 'Section::::Abstract.'}]}]