query: SELECT T2.name ,  count(*) FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id  =  T2.artist_id GROUP BY T1.artist_id
question: Show all artist name and number exhibition each artist.
query_toks: SELECT T2.name , count ( * ) FROM exhibition AS T1 JOIN artist AS T2 ON T1.artist_id = T2.artist_id GROUP BY T1.artist_id
query_toks_no_value: select t2 . name , count ( * ) from exhibition as t1 join artist as t2 on t1 . artist_id = t2 . artist_id group by t1 . artist_id
question_toks: Show all artist name and number exhibition each artist.