CREATE TABLE table_14839 ("Country" CLOB, "Film title used in nomination" CLOB, "Language" CLOB, "Original name" CLOB, "Director" CLOB)

Which Language Director of nagisa oshima use in his film?
SELECT "Language" FROM table_14839 WHERE "Director" = 'nagisa oshima'
SELECT "Language" FROM "table_14839" WHERE "Director" = 'nagisa oshima'