SELECT name FROM church EXCEPT SELECT T1.name FROM church AS T1 JOIN wedding AS T2 ON T1.church_id  =  T2.church_id WHERE T2.year  =  2015
Show all church names except for those that had a wedding in year 2015.
SELECT name FROM church EXCEPT SELECT T1.name FROM church AS T1 JOIN wedding AS T2 ON T1.church_id = T2.church_id WHERE T2.year = 2015
select name from church except select t1 . name from church as t1 join wedding as t2 on t1 . church_id = t2 . church_id where t2 . year = value
Show all church names except for those that had a wedding in year 2015 .