Question: who invented the difference engine and the analytical engine
[{'answer': 'Charles Babbage', 'provenance': [{'wikipedia_id': '1271', 'title': 'Analytical Engine', 'start_paragraph_id': 1, 'start_character': 128, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1271', 'title': 'Analytical Engine', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 502, 'bleu_score': 0.6343015292952751, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11707471233787086010}, 'section': 'Section::::Abstract.'}]}]