Question: when did the vw beetle body style change
[{'answer': '1997', 'provenance': [{'wikipedia_id': '1227448', 'title': 'Volkswagen New Beetle', 'start_paragraph_id': 1, 'start_character': 72, 'end_paragraph_id': 1, 'end_character': 76, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1227448', 'title': 'Volkswagen New Beetle', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 363, 'bleu_score': 0.73578741079995, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 361332997851036400}, 'section': 'Section::::Abstract.'}]}]