Question: who has won the 2017 formula 1 australian grand pix tournament
[{'answer': 'Sebastian Vettel', 'provenance': [{'wikipedia_id': '52695021', 'title': '2017 Australian Grand Prix', 'start_paragraph_id': 2, 'start_character': 126, 'end_paragraph_id': 2, 'end_character': 142, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '52695021', 'title': '2017 Australian Grand Prix', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 335, 'bleu_score': 0.963949056609222, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4720934171457258500}, 'section': 'Section::::Abstract.'}]}]