instruction: Show the number of courses for each office in a stacked bar chart The x-axis is office name and group by course description, order X-axis in ascending order.
response: SELECT PROF_OFFICE, COUNT(PROF_OFFICE) 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 JOIN PROFESSOR AS T4 ON T2.EMP_NUM = T4.EMP_NUM GROUP BY CRS_DESCRIPTION, PROF_OFFICE ORDER BY PROF_OFFICE