About: energy efficient

Head noun: energy
Postmodifier: efficient

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

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
light bulb	isap:303638758	0.249820
rail	isap:300749307	0.208183
microwave	isap:132737117	0.120101