CREATE TABLE book (book_id DECIMAL, title TEXT, issues DECIMAL, writer TEXT)
CREATE TABLE publication (publication_id DECIMAL, book_id DECIMAL, publisher TEXT, publication_date TEXT, price DECIMAL)

Show the publishers that have publications with price higher than 10000000 and publications with price lower than 5000000.
SELECT publisher FROM publication WHERE price > 10000000 INTERSECT SELECT publisher FROM publication WHERE price < 5000000
SELECT "publisher" FROM "publication" WHERE "price" > 10000000 INTERSECT SELECT "publisher" FROM "publication" WHERE "price" < 5000000