Question: who has won the 2018 formula one australia grand prix tournament
[{'answer': 'Sebastian Vettel', 'provenance': [{'wikipedia_id': '53775900', 'title': '2018 Australian Grand Prix', 'start_paragraph_id': 2, 'start_character': 15, 'end_paragraph_id': 2, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ferrari driver Sebastian Vettel', 'provenance': [{'wikipedia_id': '53775900', 'title': '2018 Australian Grand Prix', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53775900', 'title': '2018 Australian Grand Prix', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 247, 'bleu_score': 0.950578622812921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14449797631518877420}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53775900', 'title': '2018 Australian Grand Prix', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Ferrari driver Sebastian Vettel was the defending race winner', 'Ferrari driver Sebastian Vettel was the defending race winner', 'Ferrari driver Sebastian Vettel was the defending race winner. Lewis Hamilton started the race from polehis seventh pole position in Australia, a record for the eventwhile Vettel successfully defended his race win, the forty-eighth of his career.']}}]}]