About: lava rock

Premodifier: lava
Head noun: rock

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

Broader concepts

label	provenance	confidence
rock	isap:165408895	0.760412
natural material	isap:454987753	0.718875
filter media	isap:90207047	0.686383
porous rock	isap:165408913	0.667308
volcanic rock	isap:165408991	0.644844
available material	isap:454987842	0.610672
inorganic media	isap:90207046	0.566487
material	isap:454987733	0.518084
inorganic mulch	isap:90931681	0.461291
great idea	isap:166235888	0.378559
beach	isap:96313727	0.282941
ocean	isap:94855438	0.255139
leg	isap:127661643	0.212241

Narrower concepts

label	provenance	confidence
basalt	isap:495097510	0.196572
rock	isap:165408932	0.195792
color	isap:204113726	0.187927