query: SELECT Player_name FROM player WHERE Player_ID NOT IN (SELECT Player_ID FROM player_coach)
question: List the names of players which what does ain't no coaches.
query_toks: SELECT Player_name FROM player WHERE Player_ID NOT IN ( SELECT Player_ID FROM player_coach )
query_toks_no_value: select player_name from player where player_id not in ( select player_id from player_coach )
question_toks: List the names of players which what does ain't no coaches.