Print three result sets, each with a single title column: translated books intersected with books released in 2021 or later; the union of those two sets; and translated books released before 2021.
Use INTERSECT, UNION and EXCEPT as set operations. Do not make the three queries a join.
Expected: the three result sets contain 4, 6 and 1 rows respectively. The last result is At Night All Blood Is Black. Set operations compare compatible result columns and remove duplicate rows by default.