Question: What are the names of all students who took a class and the corresponding course descriptions?
SQL: SELECT T1.stu_fname ,  T1.stu_lname ,  T4.crs_description 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 JOIN course AS T4 ON T3.crs_code  =  T4.crs_code