Question: when was the first home security system invented
[{'answer': '1966', 'provenance': [{'wikipedia_id': '4268789', 'title': 'Marie Van Brittan Brown', 'start_paragraph_id': 1, 'start_character': 153, 'end_paragraph_id': 1, 'end_character': 157, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '4268789', 'title': 'Marie Van Brittan Brown', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 351, 'bleu_score': 0.6924425141855901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11645310104438597345}, 'section': 'Section::::Abstract.'}]}]