Question: who wrote percy jackson and the lightning thief
[{'answer': 'Rick Riordan', 'provenance': [{'wikipedia_id': '6111753', 'title': 'The Lightning Thief', 'start_paragraph_id': 1, 'start_character': 124, 'end_paragraph_id': 1, 'end_character': 136, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6111753', 'title': 'The Lightning Thief', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 350, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17104083263600741629}, 'section': 'Section::::Abstract.'}]}]