Question: who is the head of the us department of education
[{'answer': 'Betsy DeVos', 'provenance': [{'wikipedia_id': '44278', 'title': 'United States Secretary of Education', 'start_paragraph_id': 2, 'start_character': 49, 'end_paragraph_id': 2, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44278', 'title': 'United States Secretary of Education', 'start_paragraph_id': 2, 'start_character': 23, 'end_paragraph_id': 2, 'end_character': 166, 'bleu_score': 0.69199071157083, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7193899515615199317}, 'section': 'Section::::Abstract.'}]}]