Question: who directed the last three 'harry potter' movies
[{'answer': 'David Yates', 'provenance': [{'wikipedia_id': '7629286', 'title': 'Harry Potter (film series)', 'start_paragraph_id': 2, 'start_character': 274, 'end_paragraph_id': 2, 'end_character': 285, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]