Question: who invented slide rule and in what year
[{'answer': 'William Oughtred', 'provenance': [{'wikipedia_id': '28743', 'title': 'Slide rule', 'start_paragraph_id': 5, 'start_character': 13, 'end_paragraph_id': 5, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'c. 1622', 'provenance': [{'wikipedia_id': '28743', 'title': 'Slide rule', 'start_paragraph_id': 68, 'start_character': 291, 'end_paragraph_id': 68, 'end_character': 298, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '28743', 'title': 'Slide rule', 'start_paragraph_id': 68, 'start_character': 0, 'end_paragraph_id': 68, 'end_character': 786, 'bleu_score': 0.9570764685495211, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13575185662380911922}, 'section': 'Section::::History.\n'}]}]