Question: Independent Citizens' Initiative Save Austria, or Save Austria,  is an anti-EU movement in Austria which was founded by former presidential candidate and pro-neutrality activist Karl Walter Nowak, in the Austrian legislative election, 2008 they received 0.73% of the vote and no seats, it was held on which date?
{'answer': '28 September 2008', 'supporting_facts': [['Save Austria', 1], ['Austrian legislative election, 2008', 0]]}