user: Question: What is the Nation - athlete(s), when the Sport is Luge - men's singles, and when the Record is, "Track"?
Columns: ['Sport', 'Record', 'Nation - athlete(s)', 'Date', 'Time (seconds)']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ["Luge - men's singles", 'Start', 'David Möller - Germany', '21 November 2009', 4.789]
SQL:

assistant: SELECT "Nation - athlete(s)" FROM "Table" WHERE "Sport" = 'Luge - men''s singles' AND "Record" = 'Track';