CREATE TABLE table_name_34 (county VARCHAR, irish_name VARCHAR)

Irish name of an d n (contae an d in) has what county town?
SELECT county AS town FROM table_name_34 WHERE irish_name = "an dún (contae an dúin)"
SELECT "county" AS "town" FROM "table_name_34" WHERE "an dún (contae an dúin)" = "irish_name"