CREATE TABLE "1990s" (
  "year" real,
  "movie_title" text,
  "role" text,
  "direction" text,
  "screenplay" text
);

Question: Which role had thulasidas direction?
SQL: SELECT "role" FROM "1990s" WHERE "direction"='thulasidas';

Question: Which role did joemon play before 1991?
SQL: SELECT "role" FROM "1990s" WHERE "year"<1991 AND "direction"='joemon';