id	keyword
ger-624	school
ger-624	education
ger-624	century
ger-624	19th
ger-624	schooling
ger-624	term
ger-624	children
ger-624	swedish
ger-624	national
ger-624	teachers
ger-624	public
ger-624	sweden
ger-624	westberg
ger-624	history
ger-624	systems