Question: how many chapters are there in the book of esther
[{'answer': '10', 'provenance': [{'wikipedia_id': '4382', 'title': 'Book of Esther', 'start_paragraph_id': 9, 'start_character': 178, 'end_paragraph_id': 9, 'end_character': 180, 'bleu_score': 1.0, 'section': 'Section::::Setting and structure.:Structure.\n'}]}, {'provenance': [{'wikipedia_id': '4382', 'title': 'Book of Esther', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 172, 'bleu_score': 0.730036551821803, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2400734632787451141}, 'section': 'Section::::Setting and structure.:Structure.\n'}]}]