CREATE TABLE table_26385848_1 (main_language_s_ VARCHAR2, year__ceremony_ VARCHAR2)

In the year (ceremony) 1998 (71st), what are all the main languages?
SELECT main_language_s_ FROM table_26385848_1 WHERE year__ceremony_ = "1998 (71st)"
SELECT "main_language_s_" FROM "table_26385848_1" WHERE "1998 (71st)" = "year__ceremony_"