Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE course (crs_description VARCHAR, crs_code VARCHAR); CREATE TABLE CLASS (prof_num VARCHAR, crs_code VARCHAR); CREATE TABLE employee (emp_fname VARCHAR, emp_num VARCHAR)
### Question:
Find the first names of all instructors who have taught some course and the course description.
### Answer:
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