Question: How many students are enrolled in some classes that are taught by an accounting professor?
SQL: SELECT count(*) FROM CLASS AS T1 JOIN enroll AS T2 ON T1.class_code  =  T2.class_code JOIN course AS T3 ON T1.crs_code  =  T3.crs_code JOIN department AS T4 ON T3.dept_code  =  T4.dept_code WHERE T4.dept_name  =  'Accounting'