Question: when did harry potter and the chamber of secrets book come out
[{'answer': '2 July 1998', 'provenance': [{'wikipedia_id': '163234', 'title': 'Harry Potter and the Chamber of Secrets', 'start_paragraph_id': 2, 'start_character': 48, 'end_paragraph_id': 2, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '163234', 'title': 'Harry Potter and the Chamber of Secrets', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 698, 'bleu_score': 0.9490555286247551, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9912124101551842996}, 'section': 'Section::::Abstract.'}]}]