CREATE TABLE table_18759 ("Frequency" TEXT, "Call sign" TEXT, "Name" TEXT, "Format" TEXT, "Owner" TEXT, "Target city/ market" TEXT, "City of license" TEXT)

What is the target market of the station with call sign KFXS?
SELECT "Target city/ market" FROM table_18759 WHERE "Call sign" = 'KFXS'
SELECT "Target city/ market" FROM "table_18759" WHERE "Call sign" = 'KFXS'