About: drill hole

Premodifier: drill
Head noun: hole

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

Broader concepts

label	provenance	confidence
sign of torture	isap:171091272	0.611430
datum	isap:90486166	0.584278
opening	isap:2951417	0.488847
hole	isap:171784050	0.453507

Narrower concepts

label	provenance	confidence
oil well	isap:176604886	0.501158
hole	isap:171784087	0.398368
result	isap:498435676	0.268962