Find the first names of all the authors who have written a paper with title containing the word "Functional".
create table authors (fname varchar, authid varchar, PRIMARY KEY (fname)); create table papers (paperid varchar, title varchar, PRIMARY KEY (paperid)); create table authorship (authid varchar, paperid varchar, PRIMARY KEY (authid))
select t1.fname 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 "%functional%"