Question: with what french artist did neoclassicism find its most perfect expression
[{'answer': 'Jacques - Louis David', 'provenance': [{'wikipedia_id': '183280', 'title': 'Neoclassicism', 'start_paragraph_id': 15, 'start_character': 90, 'end_paragraph_id': 15, 'end_character': 111, 'bleu_score': 1.0, 'section': 'Section::::Painting and printmaking.\n'}]}, {'provenance': [{'wikipedia_id': '183280', 'title': 'Neoclassicism', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 971, 'bleu_score': 0.9873810715615521, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1518698336005921139}, 'section': 'Section::::Painting and printmaking.\n'}]}]