CREATE TABLE papers (paperid NUMBER, title CLOB)
CREATE TABLE inst (instid NUMBER, name CLOB, country CLOB)
CREATE TABLE authorship (authid NUMBER, instid NUMBER, paperid NUMBER, authorder NUMBER)
CREATE TABLE authors (authid NUMBER, lname CLOB, fname CLOB)

Which authors have written a paper with title containing the word 'Monadic'? Return their last names.
SELECT t1.lname FROM authors AS t1 JOIN authorship AS t2 ON t1.authid = t2.authid JOIN papers AS t3 ON t2.paperid = t3.paperid WHERE t3.title LIKE "%Monadic%"
SELECT "t1"."lname" FROM "authors" "t1" JOIN "authorship" "t2" ON "t1"."authid" = "t2"."authid" JOIN "papers" "t3" ON "t2"."paperid" = "t3"."paperid" AND "t3"."title" LIKE "%Monadic%"