Question: Which Year has a Nominee of Stephen Sondheim, and a Category of the Best Original Score?
SQL: SELECT "Year" FROM "2-1794747-2" WHERE "Nominee" = 'Stephen Sondheim' AND "Category" = 'Best Original Score';

Question: Which Result has a Category of the Best Costume Design?
SQL: SELECT "Result" FROM "2-1794747-2" 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 "2-1794747-2" WHERE "Award Ceremony" = 'Tony Award' AND "Category" = 'Best Performance by a Leading Actor in a Musical';