user: Question: What is the nationality of the swimmer with a rank over 2 with a time of 55.77?
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 "Nationality" FROM "Table" WHERE "Rank" > 2.0 AND "Time" = '55.77';