Question: who is responsible for inventing the sewing machine
[{'answer': 'Elias Howe Jr.', 'provenance': [{'wikipedia_id': '398747', 'title': 'Elias Howe', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '398747', 'title': 'Elias Howe', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 142, 'bleu_score': 0.8196189957582151, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15493323878215513583}, 'section': 'Section::::Abstract.'}]}]