CREATE TABLE table_39227 ("Year" FLOAT, "Dates" TEXT, "Champion" TEXT, "Country" TEXT, "Score" TEXT, "To par" TEXT, "Margin of victory" TEXT)

Which Country has a Margin of victory of 2 strokes?
SELECT "Country" FROM table_39227 WHERE "Margin of victory" = '2 strokes'
SELECT "Country" FROM "table_39227" WHERE "Margin of victory" = '2 strokes'