Question: when did the new season of grey's anatomy start
[{'answer': 'February 10 , 2017', 'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'start_paragraph_id': 71, 'start_character': 50, 'end_paragraph_id': 71, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 517, 'bleu_score': 0.9330252843665561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13380666960855719465}, 'section': 'Section::::Abstract.'}]}]