CREATE TABLE "original_broadway_production" (
  "year" real,
  "award_ceremony" text,
  "category" text,
  "nominee" text,
  "result" text
);

Question: Which Year has a Nominee of stephen sondheim, and a Category of the best original score?
SQL: SELECT "year" FROM "original_broadway_production" WHERE "nominee"='stephen sondheim' AND "category"='best original score';

Question: Which Result has a Category of the best costume design?
SQL: SELECT "result" FROM "original_broadway_production" WHERE "category"='best costume design';

Question: Which Nominee has an Award Ceremony of tony award, and a Category of the best performance by a leading actor in a musical?
SQL: SELECT "nominee" FROM "original_broadway_production" WHERE "award_ceremony"='tony award' AND "category"='best performance by a leading actor in a musical';