About: mac operating system

Premodifier: mac operating
Head noun: system

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

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
mac os x	isap:54053777	0.623841
snow leopard	isap:274910079	0.600359
lion	isap:311316255	0.461074
mavericks	isap:132419211	0.379419