Question: question 2 of 5 who is the author of the harry potter series
[{'answer': 'J.K. Rowling'}, {'provenance': [{'wikipedia_id': '156489', 'title': 'Harry Potter and the Order of the Phoenix', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 617, 'bleu_score': 0.9567532579243251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16068760735245776064}, 'section': 'Section::::Abstract.'}]}]