CREATE TABLE table_17781 ("Day  ( see Irregularities  ) " TEXT, "Monday First Day" TEXT, "Tuesday Second Day" TEXT, "Wednesday Third Day" TEXT, "Thursday Fourth Day" TEXT, "Friday Fifth Day" TEXT, "Saturday Sixth Day" TEXT, "Sunday Seventh Day" TEXT)

How do you say Friday in Polish?
SELECT "Friday Fifth Day" FROM table_17781 WHERE "Day (see Irregularities )" = 'Polish'
SELECT "Friday Fifth Day" FROM "table_17781" WHERE "Day (see Irregularities )" = 'Polish'