About: ubuntu server

Premodifier: ubuntu
Head noun: server

Same concepts
http://dbpedia.org/resource/Ubuntu_(operating_system)

Broader concepts

label	provenance	confidence
topic	isap:114148988	0.537150
version of ubuntu	isap:439421375	0.464417
os	isap:514721595	0.384749
server	isap:395125187	0.365226
everything	isap:17911969	0.203800

Narrower concepts

label	provenance	confidence
distribution	isap:81576055	0.231834