About: quiet zone

Premodifier: quiet
Head noun: zone

Same concepts
http://dbpedia.org/resource/United_States_National_Radio_Quiet_Zone

Broader concepts

label	provenance	confidence
item	isap:176620566	0.516387
good idea	isap:176817121	0.289137
area	isap:177527048	0.288055
person	isap:305160823	0.198779

Narrower concepts

label	provenance	confidence