Question: what does mad stand for in the cold war
[{'answer': 'Mutual assured destruction', 'provenance': [{'wikipedia_id': '45958', 'title': 'Mutual assured destruction', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'mutually assured destruction', 'provenance': [{'wikipedia_id': '45958', 'title': 'Mutual assured destruction', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 30, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '45958', 'title': 'Mutual assured destruction', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 594, 'bleu_score': 0.9192385314457231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3780792280703077499}, 'section': 'Section::::Abstract.'}]}]