Question: who is the youngest person on the supreme court
[{'answer': 'Elena Kagan', 'provenance': [{'wikipedia_id': '3047164', 'title': 'Demographics of the Supreme Court of the United States', 'start_paragraph_id': 53, 'start_character': 420, 'end_paragraph_id': 53, 'end_character': 431, 'bleu_score': 1.0, 'section': 'Section::::Gender.\n'}]}, {'provenance': [{'wikipedia_id': '3047164', 'title': 'Demographics of the Supreme Court of the United States', 'start_paragraph_id': 102, 'start_character': 0, 'end_paragraph_id': 102, 'end_character': 486, 'bleu_score': 0.840930646041485, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17397041087678859898}, 'section': 'Section::::Age.\n'}]}]