Question: which president had the highest number of supreme court justices confirmed
[{'answer': 'George Washington', 'provenance': [{'wikipedia_id': '21245941', 'title': 'List of Presidents of the United States by judicial appointments', 'start_paragraph_id': 6, 'start_character': 286, 'end_paragraph_id': 6, 'end_character': 303, 'bleu_score': 1.0, 'section': 'Section::::How appointments are counted.\n'}]}]