About: top drive

Premodifier: top
Head noun: drive

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

Broader concepts

label	provenance	confidence
drilling equipment	isap:336864539	0.688003
equipment	isap:336864506	0.640550
recertification of work unit	isap:240259018	0.638323
art	isap:325480698	0.473157
operation	isap:335014673	0.363689

Narrower concepts

label	provenance	confidence