user: Question: What is the rank for denmark?
Columns: ['Rank', 'Heat', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 6.0, 5.0, 'Federica Pellegrini', 'Italy', '1:55.45']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Nationality" = 'denmark';