Question: what is another term for persistent vegetative state
[{'answer': 'unresponsive wakefulness syndrome'}, {'provenance': [{'wikipedia_id': '300628', 'title': 'Persistent vegetative state', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 645, 'bleu_score': 0.8849482502354481, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5907405430874465116}, 'section': 'Section::::Abstract.'}]}]