Question: who is the first president of our country
[{'answer': 'George Washington', 'provenance': [{'wikipedia_id': '11968', 'title': 'George Washington', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]