About: unconventional fossil fuel

Premodifier: unconventional fossil
Head noun: fuel

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
tar sand	isap:178569862	0.856859
oil shale	isap:197648442	0.795749
methane hydrate	isap:78090706	0.775218
shale gas	isap:246503413	0.755266
tar shale	isap:197648441	0.755204
methane	isap:80655775	0.476272
oil	isap:245923051	0.433845