Question: where does route 66 start on the east coast
[{'answer': 'Chicago', 'provenance': [{'wikipedia_id': '79717', 'title': 'U.S. Route 66', 'start_paragraph_id': 1, 'start_character': 386, 'end_paragraph_id': 1, 'end_character': 393, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '79717', 'title': 'U.S. Route 66', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 677, 'bleu_score': 0.8463613655314731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2594720743021875182}, 'section': 'Section::::Abstract.'}]}]