Find the first names of all instructors who have taught some course and the course description.
SELECT T2.emp_fname ,  T3.crs_description FROM CLASS AS T1 JOIN employee AS T2 ON T1.prof_num  =  T2.emp_num JOIN course AS T3 ON T1.crs_code  =  T3.crs_code
SELECT T2.emp_fname ,  T3.crs_description FROM CLASS AS T1 JOIN employee AS T2 ON T1.prof_num  =  T2.emp_num JOIN course AS T3 ON T1.crs_code  =  T3.crs_code
[{'EMP_FNAME': 'Arnelle', 'CRS_DESCRIPTION': 'Accounting I'}, {'EMP_FNAME': 'Arnelle', 'CRS_DESCRIPTION': 'Accounting I'}, {'EMP_FNAME': 'Robert', 'CRS_DESCRIPTION': 'Accounting I'}, {'EMP_FNAME': 'Ismael', 'CRS_DESCRIPTION': 'Accounting II'}, {'EMP_FNAME': 'Ismael', 'CRS_DESCRIPTION': 'Accounting II'}, {'EMP_FNAME': 'Carlos', 'CRS_DESCRIPTION': 'Intro. to Microcomputing'}, {'EMP_FNAME': 'Gerald', 'CRS_DESCRIPTION': 'Intro. to Microcomputing'}, {'EMP_FNAME': 'Carlos', 'CRS_DESCRIPTION': 'Intro. to Microcomputing'}, {'EMP_FNAME': 'Peter', 'CRS_DESCRIPTION': 'Database Design and Implementation'}, {'EMP_FNAME': 'Gerald', 'CRS_DESCRIPTION': 'Intro. to Statistics'}, {'EMP_FNAME': 'Gerald', 'CRS_DESCRIPTION': 'Intro. to Statistics'}, {'EMP_FNAME': 'Peter', 'CRS_DESCRIPTION': 'Statistical Applications'}, {'EMP_FNAME': 'Peter', 'CRS_DESCRIPTION': 'Statistical Applications'}]