Question: who holds the record for the fastest 40 yard dash
[{'answer': 'Christian Coleman', 'provenance': [{'wikipedia_id': '2685711', 'title': '40-yard dash', 'start_paragraph_id': 12, 'start_character': 26, 'end_paragraph_id': 12, 'end_character': 43, 'bleu_score': 1.0, 'section': 'Section::::Records.\n'}]}]