Question: what was the first os to support microsoft hyper-v
[{'answer': 'Windows 8', 'provenance': [{'wikipedia_id': '11168084', 'title': 'Hyper-V', 'start_paragraph_id': 1, 'start_character': 192, 'end_paragraph_id': 1, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11168084', 'title': 'Hyper-V', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 433, 'bleu_score': 0.9338603241255111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1951271438074735729}, 'section': 'Section::::Abstract.'}]}]