Question: who was the treasurer of the united states in 1950
[{'answer': 'Georgia Neese Clark', 'provenance': [{'wikipedia_id': '226296', 'title': 'Treasurer of the United States', 'start_paragraph_id': 3, 'start_character': 36, 'end_paragraph_id': 3, 'end_character': 55, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]