Question: What is the first name of the student whose last name starts with the letter S and is taking ACCT-211?
SQL: SELECT T1.stu_fname FROM student AS T1 JOIN enroll AS T2 ON T1.stu_num  =  T2.stu_num JOIN CLASS AS T3 ON T2.class_code  =  T3.class_code WHERE T3.crs_code  =  'ACCT-211' AND T1.stu_lname LIKE 'S%'