CREATE TABLE table_78904 ("Name" TEXT, "Pos." TEXT, "Height" TEXT, "Weight" TEXT, "Date of Birth" TEXT, "Club" TEXT)

What is the position of the player with a height of m (ft 6in)?
SELECT "Pos." FROM table_78904 WHERE "Height" = 'm (ft 6in)'
SELECT "Pos." FROM "table_78904" WHERE "Height" = 'm (ft 6in)'