Question: Find the names of the clubs that have at least a member from the city with city code "HOU".
Schema: create table member_of_club (clubid varchar, stuid varchar, PRIMARY KEY (clubid)); create table club (clubname varchar, clubid varchar, PRIMARY KEY (clubname)); create table student (stuid varchar, city_code varchar, PRIMARY KEY (stuid))
SQL: select distinct t1.clubname from club as t1 join member_of_club as t2 on t1.clubid = t2.clubid join student as t3 on t2.stuid = t3.stuid where t3.city_code = "hou"