Question: hertfordshire fire and rescue service chief fire officer
[{'answer': 'Darryl Keen', 'provenance': [{'wikipedia_id': '10389124', 'title': 'Hertfordshire Fire and Rescue Service', 'start_paragraph_id': 2, 'start_character': 265, 'end_paragraph_id': 2, 'end_character': 276, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10389124', 'title': 'Hertfordshire Fire and Rescue Service', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 329, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14435171828249440744}, 'section': 'Section::::Abstract.'}]}]