id	keyword
cana-3181	time
cana-3181	timetable
cana-3181	constraints
cana-3181	optimization
cana-3181	scheduling
cana-3181	course
cana-3181	teacher
cana-3181	classroom
cana-3181	framework
cana-3181	satisfaction
cana-3181	slot
cana-3181	analysis
cana-3181	algorithm
cana-3181	vol
cana-3181	solution