About: fuel efficient vehicle

Head noun: fuel
Postmodifier: efficient vehicle

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

Broader concepts

label	provenance	confidence
alternative transportation	isap:476761158	0.548653

Narrower concepts

label	provenance	confidence
hybrid car	isap:251350334	0.691867
hybrid	isap:496652939	0.593753
use of hybrid	isap:246096927	0.468909
wealthier inner-urban household	isap:147382590	0.275238