Question: when was the first wimpy kid book published
[{'answer': '2007', 'provenance': [{'wikipedia_id': '11263766', 'title': 'Diary of a Wimpy Kid', 'start_paragraph_id': 2, 'start_character': 154, 'end_paragraph_id': 2, 'end_character': 158, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '11263766', 'title': 'Diary of a Wimpy Kid', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 345, 'bleu_score': 0.8188153252734051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11041210202816641472}, 'section': 'Section::::Abstract.'}]}]