Question: when was the book 13 reasons why published
[{'answer': 'October 18 , 2007', 'provenance': [{'wikipedia_id': '23869776', 'title': 'Thirteen Reasons Why', 'start_paragraph_id': 4, 'start_character': 59, 'end_paragraph_id': 4, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Introduction.\n'}]}, {'provenance': [{'wikipedia_id': '23869776', 'title': 'Thirteen Reasons Why', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 306, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7135500458479783467}, 'section': 'Section::::Introduction.\n'}]}]