CREATE TABLE table_50613 ("Athlete" TEXT, "Time" TEXT, "Country" TEXT, "Year" FLOAT, "Place" FLOAT)

Which Athlete has a Place of 1, and a Year smaller than 1988, and a Country of gre, and a Time of 21:57:00?
SELECT "Athlete" FROM table_50613 WHERE "Place" = '1' AND "Year" < '1988' AND "Country" = 'gre' AND "Time" = '21:57:00'
SELECT "Athlete" FROM "table_50613" WHERE "Country" = 'gre' AND "Place" = '1' AND "Time" = '21:57:00' AND "Year" < '1988'