What was the year when My Mother's Teahouse was not nominated?
CREATE TABLE "submissions" (
  "year_ceremony" text,
  "film_title_used_in_nomination" text,
  "original_title" text,
  "director" text,
  "result" text
);
SELECT "year_ceremony" FROM "submissions" WHERE "result"='Not Nominated' AND "film_title_used_in_nomination"='My Mother''s Teahouse';