Question: what is the name of the president of austria
[{'answer': 'Alexander Van der Bellen', 'provenance': [{'wikipedia_id': '218464', 'title': 'President of Austria', 'start_paragraph_id': 5, 'start_character': 497, 'end_paragraph_id': 5, 'end_character': 521, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]