About: jack-up rig

Premodifier: jack-up
Head noun: rig

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

Broader concepts

label	provenance	confidence
oil	isap:280784122	0.552855
unit	isap:252391979	0.460766

Narrower concepts

label	provenance	confidence
unit	isap:128754590	0.175891