query: SELECT user_name ,  password FROM users GROUP BY role_code ORDER BY count(*) DESC LIMIT 1
question: Do List all the username and password of users with the popularest role.
query_toks: SELECT user_name , password FROM users GROUP BY role_code ORDER BY count ( * ) DESC LIMIT 1
query_toks_no_value: select user_name , password from users group by role_code order by count ( * ) desc limit value
question_toks: Do List all the username and password of users with the popularest role.