Question: what's the largest jail in the united states
[{'answer': 'Cook County Jail', 'provenance': [{'wikipedia_id': '18491245', 'title': 'Cook County Jail', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18491245', 'title': 'Cook County Jail', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 278, 'bleu_score': 0.8505405945991491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6839910811945500119}, 'section': 'Section::::Abstract.'}]}]