query: SELECT T1.artist_name FROM song AS T1 JOIN files AS T2 ON T1.f_id  =  T2.f_id ORDER BY T2.duration LIMIT 1
question: What is the name of the artist produce the shortest song?
query_toks: SELECT T1.artist_name FROM song AS T1 JOIN files AS T2 ON T1.f_id = T2.f_id ORDER BY T2.duration LIMIT 1
query_toks_no_value: select t1 . artist_name from song as t1 join files as t2 on t1 . f_id = t2 . f_id order by t2 . duration limit value
question_toks: What is the name of the artist produce the shortest song?