Question: who was the president of the united states in 1954
[{'answer': 'Dwight D. Eisenhower', 'provenance': [{'wikipedia_id': '24807521', 'title': '1954 in the United States', 'start_paragraph_id': 4, 'start_character': 23, 'end_paragraph_id': 4, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Incumbents.:Federal Government.\n'}]}]