Question: who was the 45th president of the us
[{'answer': 'Donald Trump', 'provenance': [{'wikipedia_id': '52231341', 'title': 'Presidency of Donald Trump', 'start_paragraph_id': 0, 'start_character': 14, 'end_paragraph_id': 0, 'end_character': 26, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]