Task: Text to Code
Input (English): SQL: SELECT T1.semester FROM section AS T1 JOIN takes AS T2 ON T1.year = T2.year WHERE T2.year ! = 2010
Feedback: Substitute semester with course id , Ensure it equals semester fall and year 2009 , not equals semester Spring .
Output (English): SELECT course_id FROM SECTION WHERE semester  =  'Fall' AND YEAR  =  2009 EXCEPT SELECT course_id FROM SECTION WHERE semester  =  'Spring' AND YEAR  =  2010