CREATE TABLE rating (rid NUMBER, mid NUMBER, stars NUMBER, ratingdate TIME)
CREATE TABLE movie (mid NUMBER, title CLOB, year NUMBER, director CLOB)
CREATE TABLE reviewer (rid NUMBER, name CLOB)

What are the names of all reviewers that have given 3 or 4 stars for reviews?
SELECT T2.name FROM rating AS T1 JOIN reviewer AS T2 ON T1.rid = T2.rid WHERE T1.stars = 3 INTERSECT SELECT T2.name FROM rating AS T1 JOIN reviewer AS T2 ON T1.rid = T2.rid WHERE T1.stars = 4
SELECT "T2"."name" FROM "rating" "T1" JOIN "reviewer" "T2" ON "T1"."rid" = "T2"."rid" WHERE "T1"."stars" = 3 INTERSECT SELECT "T2"."name" FROM "rating" "T1" JOIN "reviewer" "T2" ON "T1"."rid" = "T2"."rid" WHERE "T1"."stars" = 4