query: SELECT DISTINCT salary FROM instructor WHERE salary  <  (SELECT max(salary) FROM instructor)
question: What the distinct salary all instructor who had earned less the maximum salary?
query_toks: SELECT DISTINCT salary FROM instructor WHERE salary < ( SELECT max ( salary ) FROM instructor )
query_toks_no_value: select distinct salary from instructor where salary < ( select max ( salary ) from instructor )
question_toks: What the distinct salary all instructor who had earned less the maximum salary?