Question: when was north carolina added to the union
[{'answer': 'November 21 , 1789', 'provenance': [{'wikipedia_id': '21650', 'title': 'North Carolina', 'start_paragraph_id': 36, 'start_character': 3, 'end_paragraph_id': 36, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::History.:Antebellum period.\n'}]}]