Question: what is the population of johnson city tn
[{'answer': '66,027'}, {'provenance': [{'wikipedia_id': '151061', 'title': 'Johnson City, Tennessee', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 310, 'bleu_score': 0.8719553949694501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6493261435437893549}, 'section': 'Section::::Abstract.'}]}]