About: crushed rock

Premodifier: crushed
Head noun: rock

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

Broader concepts

label	provenance	confidence
material	isap:454987700	0.800876
aggregate	isap:290264735	0.702352
supplies	isap:460654608	0.539476
stone	isap:95122249	0.308516
ballast	isap:9722922	0.288948

Narrower concepts

label	provenance	confidence
limestone	isap:149701378	0.417028
granite	isap:74713516	0.401686