About: drilling for oil

Head noun: drilling
Postmodifier: for oil

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

Broader concepts

label	provenance	confidence
activity	isap:60363849	0.542299
fossil fuel	isap:384112587	0.529806
natural resource	isap:56739585	0.478102
risky business	isap:57092889	0.388064
substance	isap:185085977	0.306087
hoax	isap:384216505	0.274789

Narrower concepts

label	provenance	confidence