Question: when did the word ain't become a word in the dictionary
[{'answer': 'in the 1830s', 'provenance': [{'wikipedia_id': '28723479', 'title': "Ain't", 'start_paragraph_id': 12, 'start_character': 79, 'end_paragraph_id': 12, 'end_character': 91, 'bleu_score': 1.0, 'section': 'Section::::Etymology.:Contractions of "to have not".\n'}]}, {'provenance': [{'wikipedia_id': '28723479', 'title': "Ain't", 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 368, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14887721648059463096}, 'section': 'Section::::Etymology.:Contractions of "to have not".\n'}]}]