user: Question: Which Rank has a Name of tsvetelina kirilova, and a Result smaller than 55.97?
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 "Rank" FROM "Table" WHERE "Name" = 'tsvetelina kirilova' AND "Result" < 55.97;