user: Question: What is the earliest heat with a finisher from the czech republic and a rank over 41?
Columns: ['Rank', 'Heat', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 4.0, 4.0, 'Matt Grevers', 'United States', '53.41']
SQL:

assistant: SELECT MIN("Heat") FROM "Table" WHERE "Nationality" = 'czech republic' AND "Rank" > 41.0;