Question: who was the anatomist that taught anatomy to medical students using cadavers in the 1500s
[{'answer': 'Andreas Vesalius', 'provenance': [{'wikipedia_id': '48985', 'title': 'History of anatomy', 'start_paragraph_id': 21, 'start_character': 354, 'end_paragraph_id': 21, 'end_character': 370, 'bleu_score': 1.0, 'section': 'Section::::Early modern anatomy.:Vesalius.\n'}]}, {'provenance': [{'wikipedia_id': '48985', 'title': 'History of anatomy', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 1639, 'bleu_score': 0.6027207743384001, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18036294164656381595}, 'section': 'Section::::Early modern anatomy.:Vesalius.\n'}]}]