CREATE TABLE table_71840 ("Place" TEXT, "Player" TEXT, "Country" TEXT, "Score" TEXT, "To par" TEXT)

Which country watch Tom Watson at t9 score 72-72=144?
SELECT "Country" FROM table_71840 WHERE "Place" = 't9' AND "Score" = '72-72=144' AND "Player" = 'tom watson'
SELECT "Country" FROM "table_71840" WHERE "Place" = 't9' AND "Player" = 'tom watson' AND "Score" = '72-72=144'