query: SELECT DISTINCT artist_name FROM artist WHERE country  =  "Bangladesh" EXCEPT SELECT DISTINCT artist_name FROM song WHERE rating  >  7
question: What-all the names of the different artists from Bangladesh never receive a rating more higher than a 7?
query_toks: SELECT DISTINCT artist_name FROM artist WHERE country = `` Bangladesh '' EXCEPT SELECT DISTINCT artist_name FROM song WHERE rating > 7
query_toks_no_value: select distinct artist_name from artist where country = value except select distinct artist_name from song where rating > value
question_toks: What-all the names of the different artists from Bangladesh never receive a rating more higher than a 7?