About: first earth day

Premodifier: first earth
Head noun: day

Same concepts

Broader concepts

label	provenance	confidence
circle	isap:214862031	0.430230
event	isap:468193288	0.317667

Narrower concepts

label	provenance	confidence
clean air act	isap:279540485	0.745473
establishment of the environmental	isap:240932252	0.647177