id	keyword
hassl-857	school
hassl-857	effectiveness
hassl-857	wastage
hassl-857	resources
hassl-857	students
hassl-857	teachers
hassl-857	study
hassl-857	secondary
hassl-857	buildings
hassl-857	material
hassl-857	farm
hassl-857	system
hassl-857	school system
hassl-857	teaching
hassl-857	school buildings