Question: who taught history of magic in harry potter
[{'answer': 'Cuthbert Binns', 'provenance': [{'wikipedia_id': '310355', 'title': 'Magic in Harry Potter', 'start_paragraph_id': 88, 'start_character': 50, 'end_paragraph_id': 88, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Subjects at Hogwarts.:History of Magic.\n'}]}, {'provenance': [{'wikipedia_id': '310355', 'title': 'Magic in Harry Potter', 'start_paragraph_id': 88, 'start_character': 0, 'end_paragraph_id': 88, 'end_character': 469, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2068839579868279602}, 'section': 'Section::::Subjects at Hogwarts.:History of Magic.\n'}]}]