Question: theme of the book harry potter the series
[{'answer': 'death', 'provenance': [{'wikipedia_id': '2387806', 'title': 'Harry Potter', 'start_paragraph_id': 4, 'start_character': 320, 'end_paragraph_id': 4, 'end_character': 325, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2387806', 'title': 'Harry Potter', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 402, 'bleu_score': 0.9669306597086381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10176876696555712840}, 'section': 'Section::::Abstract.'}]}]