CREATE TABLE table_79345 ("Rank" FLOAT, "Heat" FLOAT, "Name" CLOB, "Nationality" CLOB, "Result" FLOAT)

Which Heat has a Nationality of bulgaria, and a Result larger than 55.97?
SELECT MIN("Heat") FROM table_79345 WHERE "Nationality" = 'bulgaria' AND "Result" > '55.97'
SELECT MIN("Heat") FROM "table_79345" WHERE "Nationality" = 'bulgaria' AND "Result" > '55.97'