Question: Which country does music producer Basto come from, who worked with Will.i.am and Britney Spears on "Scream & Shout" in 2012?
{'answer': 'Belgian', 'supporting_facts': [['Basto', 0], ['Basto', 1], ['Basto', 4], ['Basto', 7], ['Scream &amp; Shout', 1]]}