CREATE TABLE item (i_id DECIMAL, title TEXT)
CREATE TABLE review (a_id DECIMAL, u_id DECIMAL, i_id DECIMAL, rating DECIMAL, rank DECIMAL)
CREATE TABLE useracct (u_id DECIMAL, name TEXT)
CREATE TABLE trust (source_u_id DECIMAL, target_u_id DECIMAL, trust DECIMAL)

Find the names of the items that did not receive any review.
SELECT title FROM item WHERE NOT i_id IN (SELECT i_id FROM review)
SELECT "title" FROM "item" WHERE NOT "i_id" IN (SELECT "i_id" FROM "review")