What are the ids of courses offered in Fall of 2009 but not in Spring of 2010?
SELECT course_id FROM SECTION WHERE semester  =  'Fall' AND YEAR  =  2009 EXCEPT SELECT course_id FROM SECTION WHERE semester  =  'Spring' AND YEAR  =  2010
SELECT course_id FROM SECTION WHERE semester  =  'Fall' AND YEAR  =  2009 EXCEPT SELECT course_id FROM SECTION WHERE semester  =  'Spring' AND YEAR  =  2010
[{'course_id': '105'}, {'course_id': '237'}, {'course_id': '242'}, {'course_id': '304'}, {'course_id': '334'}, {'course_id': '486'}, {'course_id': '960'}]