user: Question: Which Nationality has a Heat smaller than 2, and a Rank of 15?
Columns: ['Rank', 'Heat', 'Name', 'Nationality', 'Result']
Types: ['real', 'real', 'text', 'text', 'real']
Sample row: [1.0, 1.0, 'Sheena Tosta', 'United States', 54.07]
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Heat" < 2.0 AND "Rank" = 15.0;