Question: when did the first episode of greys anatomy come out
[{'answer': 'March 27 , 2005', 'provenance': [{'wikipedia_id': '1660277', 'title': "Grey's Anatomy", 'start_paragraph_id': 91, 'start_character': 96, 'end_paragraph_id': 91, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Broadcast history.\n'}]}]