About: accretion disk

Premodifier: accretion
Head noun: disk

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

Broader concepts

label	provenance	confidence
structure	isap:289592466	0.435353
black hole	isap:166195374	0.286332

Narrower concepts

label	provenance	confidence
black hole	isap:169614185	0.718873
ring	isap:178578574	0.199202