Question: where did the name big brother come from
[{'answer': 'Nineteen Eighty - Four', 'provenance': [{'wikipedia_id': '4261', 'title': 'Big Brother (Nineteen Eighty-Four)', 'start_paragraph_id': 23, 'start_character': 26, 'end_paragraph_id': 23, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Criticism and use as metaphor.\n'}]}, {'provenance': [{'wikipedia_id': '4261', 'title': 'Big Brother (Nineteen Eighty-Four)', 'start_paragraph_id': 23, 'start_character': 0, 'end_paragraph_id': 23, 'end_character': 212, 'bleu_score': 0.9383861709333501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5697302598491073483}, 'section': 'Section::::Criticism and use as metaphor.\n'}]}]