Question: among this artist's greatest works is the birth of venus
[{'answer': 'Sandro Botticelli', 'provenance': [{'wikipedia_id': '73515', 'title': 'Sandro Botticelli', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]