CREATE TABLE table_74473 ("Townland" TEXT, "Area (  acres  ) " FLOAT, "Barony" TEXT, "Civil parish" TEXT, "Poor law union" TEXT)

What is the greatest area when the Poor Law Union is Skibbereen and the Civil Parish is Tullagh?
SELECT MAX("Area( acres )") FROM table_74473 WHERE "Poor law union" = 'Skibbereen' AND "Civil parish" = 'Tullagh'
SELECT MAX("Area( acres )") FROM "table_74473" WHERE "Civil parish" = 'Tullagh' AND "Poor law union" = 'Skibbereen'