Question: when was the very first sewing machine invented
[{'answer': '1790', 'provenance': [{'wikipedia_id': '85012', 'title': 'Sewing machine', 'start_paragraph_id': 1, 'start_character': 368, 'end_paragraph_id': 1, 'end_character': 372, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '85012', 'title': 'Sewing machine', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 470, 'bleu_score': 0.9383908431221111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4088681385251136659}, 'section': 'Section::::Abstract.'}]}]