Question: The Mercurial Vapor is a football boot manufactured by Nike, the boot is known for being lightweight, the boot is endorsed by many players for whom speed is part of their game, notably Xherdan Shaqiri, a Swiss professional footballer who plays as a winger for Premier League club Stoke City, and which country?
{'answer': 'Switzerland', 'supporting_facts': [['Nike Mercurial Vapor', 2], ['Xherdan Shaqiri', 0]]}