Question: when did wizards of the coast buy d&d
[{'answer': 'April 10 , 1997', 'provenance': [{'wikipedia_id': '146563', 'title': 'Wizards of the Coast', 'start_paragraph_id': 9, 'start_character': 91, 'end_paragraph_id': 9, 'end_character': 106, 'bleu_score': 1.0, 'section': 'Section::::History.:Acquisition of TSR and "Pokémon TCG".\n'}]}, {'provenance': [{'wikipedia_id': '146563', 'title': 'Wizards of the Coast', 'start_paragraph_id': 9, 'start_character': 0, 'end_paragraph_id': 9, 'end_character': 625, 'bleu_score': 0.980097014099621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16532301155864160106}, 'section': 'Section::::History.:Acquisition of TSR and "Pokémon TCG".\n'}]}]