Question: who has the us blamed for the creation of the global wannacry ransomeware virus
[{'answer': 'North Korea', 'provenance': [{'wikipedia_id': '54027815', 'title': 'WannaCry ransomware attack', 'start_paragraph_id': 2, 'start_character': 475, 'end_paragraph_id': 2, 'end_character': 486, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54027815', 'title': 'WannaCry ransomware attack', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 122, 'bleu_score': 0.8970773746801091, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1036021673581282838}, 'section': 'Section::::Abstract.'}]}]