query: SELECT count(*) FROM employee AS T1 JOIN CLASS AS T2 ON T1.EMP_NUM  =  T2.PROF_NUM WHERE T1.EMP_LNAME  =  'Graztevski'
question: How classes many do a professor the last name for whose is Graztevski is teaching?
query_toks: SELECT count ( * ) FROM employee AS T1 JOIN CLASS AS T2 ON T1.EMP_NUM = T2.PROF_NUM WHERE T1.EMP_LNAME = 'Graztevski '
query_toks_no_value: select count ( * ) from employee as t1 join class as t2 on t1 . emp_num = t2 . prof_num where t1 . emp_lname = value
question_toks: How classes many do a professor the last name for whose is Graztevski is teaching?