Question: who is the current quarterback for the detroit lions
[{'answer': 'John Matthew Stafford', 'provenance': [{'wikipedia_id': '7574767', 'title': 'Matthew Stafford', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7574767', 'title': 'Matthew Stafford', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 360, 'bleu_score': 0.728955539012611, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 208703941824466596}, 'section': 'Section::::Abstract.'}]}]