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 CLASS (crs_code VARCHAR, prof_num 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 code.
### Answer:
SELECT T2.emp_fname, T1.crs_code FROM CLASS AS T1 JOIN employee AS T2 ON T1.prof_num = T2.emp_num