Question: who is the first chief justice of the supreme court
[{'answer': 'John Jay', 'provenance': [{'wikipedia_id': '31739', 'title': 'Chief Justice of the United States', 'start_paragraph_id': 4, 'start_character': 104, 'end_paragraph_id': 4, 'end_character': 112, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]