Question: what is the product name for os x version 10.11
[{'answer': 'El Capitan', 'provenance': [{'wikipedia_id': '162549', 'title': 'MacOS version history', 'start_paragraph_id': 20, 'start_character': 916, 'end_paragraph_id': 20, 'end_character': 926, 'bleu_score': 1.0, 'section': 'Section::::Releases.\n'}]}, {'provenance': [{'wikipedia_id': '162549', 'title': 'MacOS version history', 'start_paragraph_id': 20, 'start_character': 0, 'end_paragraph_id': 20, 'end_character': 918, 'bleu_score': 0.8777762153135361, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12675027167378735463}, 'section': 'Section::::Releases.\n'}]}]