About: source rock

Premodifier: source
Head noun: rock

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

Broader concepts

label	provenance	confidence
number	isap:303937128	0.255894
layer	isap:87429608	0.204932

Narrower concepts

label	provenance	confidence
shale	isap:199738283	0.372285