CREATE TABLE table_6987 ("Year" CLOB, "Film title used in nomination" CLOB, "Original title" CLOB, "Main Language ( s ) " CLOB, "Result" CLOB)

What is the primary language used in the film, Black Book?
SELECT "Main Language(s)" FROM table_6987 WHERE "Film title used in nomination" = 'black book'
SELECT "Main Language(s)" FROM "table_6987" WHERE "Film title used in nomination" = 'black book'