About: porous rock

Premodifier: porous
Head noun: rock

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

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
lava rock	isap:165408913	0.667308
sandstone	isap:150436356	0.446665
limestone	isap:149701377	0.372491
pumice	isap:497280995	0.323793
chalk	isap:197090246	0.173676