Question: when was the first swiss army knife made
[{'answer': '1891', 'provenance': [{'wikipedia_id': '313833', 'title': 'Swiss Army knife', 'start_paragraph_id': 3, 'start_character': 78, 'end_paragraph_id': 3, 'end_character': 82, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '313833', 'title': 'Swiss Army knife', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 646, 'bleu_score': 0.9806740509884301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10839251292740251864}, 'section': 'Section::::Abstract.'}]}]