CREATE TABLE table_49603 ("Place" TEXT, "Country" TEXT, "Qualifying Grand Prix" TEXT, "Class" TEXT, "Dates" TEXT)

What is Country, when Class is '15 meters', and when Qualifying Grand Prix is 'Soaring Grand Prix Of United Kingdom'?
SELECT "Country" FROM table_49603 WHERE "Class" = '15 meters' AND "Qualifying Grand Prix" = 'soaring grand prix of united kingdom'
SELECT "Country" FROM "table_49603" WHERE "Class" = '15 meters' AND "Qualifying Grand Prix" = 'soaring grand prix of united kingdom'