CREATE TABLE table_203_794 (id DECIMAL, "year" DECIMAL, "location" TEXT, "attendance" DECIMAL, "theme phrase" TEXT, "top messages" TEXT, "host" TEXT, "opening general session guest ( s ) " TEXT, "closing general session guest ( s ) " TEXT, "sunday night reception" TEXT, "wednesday night party" TEXT, "cult shirt" TEXT)

which location is before the no event row of 1994 ?
SELECT "location" FROM table_203_794 WHERE id = (SELECT id FROM table_203_794 WHERE "location" = 'no event') - 1
SELECT "location" FROM "table_203_794" WHERE "id" = (SELECT "id" FROM "table_203_794" WHERE "location" = 'no event') - 1