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

Find the titles of items whose rating is higher than the average review rating of all items.
SELECT T1.title FROM item AS T1 JOIN review AS T2 ON T1.i_id = T2.i_id WHERE T2.rating > (SELECT AVG(rating) FROM review)
SELECT "T1"."title" FROM "item" AS "T1" JOIN "review" AS "T2" ON "T1"."i_id" = "T2"."i_id" AND "T2"."rating" > (SELECT AVG("rating") FROM "review")