query: SELECT count(*) ,  dept_code FROM professor WHERE prof_high_degree  =  'Ph.D.' GROUP BY dept_code
question: It is a Ph.D. in each department that how many professors have?
query_toks: SELECT count ( * ) , dept_code FROM professor WHERE prof_high_degree = 'Ph.D . ' GROUP BY dept_code
query_toks_no_value: select count ( * ) , dept_code from professor where prof_high_degree = value group by dept_code
question_toks: It is a Ph.D. in each department that how many professors have?