Question: where was the first skyscraper built in the united states
[{'answer': 'Chicago', 'provenance': [{'wikipedia_id': '37051893', 'title': 'Early skyscrapers', 'start_paragraph_id': 1, 'start_character': 152, 'end_paragraph_id': 1, 'end_character': 159, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '37051893', 'title': 'Early skyscrapers', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 843, 'bleu_score': 0.9247847488155351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10054358687735531665}, 'section': 'Section::::Abstract.'}]}]