Question: when did the first macbook pro retina come out
[{'answer': 'October 23 , 2012', 'provenance': [{'wikipedia_id': '3677824', 'title': 'MacBook Pro', 'start_paragraph_id': 35, 'start_character': 570, 'end_paragraph_id': 35, 'end_character': 591, 'bleu_score': 1.0, 'section': 'Section::::Third generation (Retina).\n'}]}, {'provenance': [{'wikipedia_id': '3677824', 'title': 'MacBook Pro', 'start_paragraph_id': 35, 'start_character': 0, 'end_paragraph_id': 35, 'end_character': 695, 'bleu_score': 0.8702459801275161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1137716709936973993}, 'section': 'Section::::Third generation (Retina).\n'}]}]