About: underground mine

Premodifier: underground
Head noun: mine

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

Broader concepts

label	provenance	confidence
harsh environment	isap:417554420	0.748570
environment	isap:417554417	0.575653
area	isap:179611995	0.485728
place	isap:89837524	0.279289

Narrower concepts

label	provenance	confidence
coal mine	isap:178501348	0.718663