About: air stone

Premodifier: air
Head noun: stone

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

Broader concepts

label	provenance	confidence
accessory	isap:335015589	0.654736
device	isap:155214129	0.459167
material	isap:297961928	0.419022
item	isap:195930607	0.374499
good idea	isap:195866706	0.370907

Narrower concepts

label	provenance	confidence
filter	isap:117491391	0.167544
fact	isap:89206023	0.043291