id	keyword
ch-454	war
ch-454	school
ch-454	children
ch-454	social
ch-454	studies
ch-454	teachers
ch-454	education
ch-454	elementary
ch-454	world
ch-454	geography
ch-454	stamps
ch-454	community
ch-454	activities
ch-454	grade
ch-454	wartime
ch-454	pupils
ch-454	study
ch-454	flag
ch-454	sales
ch-454	rationing