Question: who is the current coach of the dallas cowboys
[{'answer': 'Jason Calvin Garrett', 'provenance': [{'wikipedia_id': '3517560', 'title': 'Jason Garrett', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3517560', 'title': 'Jason Garrett', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 500, 'bleu_score': 0.9754554449993441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8666037992710376457}, 'section': 'Section::::Abstract.'}]}]