About: railway sleeper

Premodifier: railway
Head noun: sleeper

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

Broader concepts

label	provenance	confidence
material	isap:48902390	0.545625
sawn timber	isap:265647083	0.522808
timber	isap:265647082	0.454232

Narrower concepts

label	provenance	confidence