Question: when did dr seuss wrote his first book
[{'answer': '1936', 'provenance': [{'wikipedia_id': '8855', 'title': 'Dr. Seuss', 'start_paragraph_id': 13, 'start_character': 366, 'end_paragraph_id': 13, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::Life and career.:Early career.\n'}]}, {'provenance': [{'wikipedia_id': '8855', 'title': 'Dr. Seuss', 'start_paragraph_id': 15, 'start_character': 24, 'end_paragraph_id': 15, 'end_character': 814, 'bleu_score': 0.9483570802887461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1695887609200017149}, 'section': 'Section::::Life and career.:Early career.\n'}]}]